My role became useless after I discovered trashleg to be mafia after all of the other people were dead by the 2nd night...It's not like I was told who the deputy or nurse were. I figured that tragentspree or zexen were SK, which is why I targeted them and I was never told "hey. this person is the SK!" The role wasn't that useful in all honesty.

Also, there were only 3 of us. 2 of us were the only ones active during the game. And I'm the only one who was available to participate the majority of the game because Falcon wanted to stay in the game despite not having much time to give to the game.

It looks more unbalanced when you FORGET THREE MAFIA. (And the Vigilante.) Here's the list I got from TOS's scoreboard:
Townie x 9
Nurse
Cop [SUBSTITUTED]
Friendly Neighbor
Alcoholic Night Watchman
Doctor
Deputy
Bus Driver
Vigilante [MODKILLED]
Jail Keeper

Serial Killer
Mafia T
Mafia T [MODKILLED]
Mafia C
Mafia C [SUBSTITUTED]
Mafia C [MODKILLED]
Mafia C Roleblocker [MODKILLED]
Mafia T Cop

And even if the mafia cop wasn't much good to you this game, it's not like there weren't a bunch of townie roles that didn't do any good.

[edit:  Added detail to list.  I thought that instead of forgetting 3 mafia and the vigilante you might have been just subtracting the modkills, but no.  So now we see that the town had 1 modkill and 1 substitution and the mafia had 3 modkills and one substitution.  Considering that the mafia started out grossly overpowered ... I don't see a problem with the modkillings nor with the choice to substitute for the cop.  Hey, the mafia got one sub too.]

[edit2:  ... well, you probably have a point about lestatdark.  It probably wouldn't have been that hard to find him a substitute; hell, I would have stepped in.  But that's not a problem of substituting the cop, it's NOT substituting lestat.]

Well, if you give X townie his role, you just announce the modkilled was townie and don't say anything else, you don't say that you gave it to someone else. When I swapped roles after someone lurking I told the one that received it (I think it was Falcon) in PM and didn't tell the town anything

Er.. I did substracted the modkills, what's the point of adding those? All that they probably did was delay the night, and they were modkilled by day 2, It's practically like if they hadn't played.

There's a difference between a useless role and a role that is useful but for whatever reason doesn't have the opportunity. The point of a mafia cop is to find other mafia factions so the faction with the cop lynch (or kill) the other faction, but guess what, the other family practically got modkilled and we reached a situation in which we didn't want the other mafia to be killed or lynched. Not only that but also we had 1 less mafia because of this role, so if you see in this situation having a mafia cop was worse than not having it.

Yes, I'm aware that the mafia was overpowered at the beginning by that day 2 it was the contrary. The towny had numerical and role advantage. And MM's and dtewi's replacement was way different.

Once again, I don't mind replacements, replacements are pretty common in this game but there are 2 wrong things about that replacement in this game.

1- The cop was replaced while a mafia in practically the same situation was modkilled earier

2- The way the person who replaced the cop was picked. I know that there hadnt been a case like this so I understand, but if a dead person replaces a living one there should be a way to pick it in which every dead person (who contributed to the game of course) has the opportunity to be the one replacing, like I said to zex, if we're gonna pick whoever posts in the thread and says "hey I'm here" we'll be in a unnecessary and annoying situation in which everydead person will post "hey I'm here".

If you look at my posts, that's what I've been saying.. Truck should've either killed dtewi or found lestatdark a replacement, the reason of why I'm saying dtewi should've been modkilled is because lestatdark was already modkilled when dtewi had the problems, and it was impossible to replace lestatdark since his role was already revealed.

I do believe you are misunderstanding what I'm saying. Too many anti-town powerroles were dead by night 2. If I knew who the other mafia were, I'd know who I should and shouldn't really go for. I'm saying my role became useless once I discovered the 4th member of their mafia (which was helpful in the sense that I learned there was 1 more mafia member but that's about it.)

Well, you did it incorrectly, I believe. 

Your list: 
2x Corleone mafia
Mafia cop
Mafia hitman

TOS's list (excluding modkilled mafia): 
2x corleone mafia
1x tattaglia mafia
Mafia cop (Tattaglia)

Notice the lack of a "mafia hitman" on TOS's list and the presence of an extra Tattaglia mafia.  That threw me off.  I thought you just said hitman instead of roleblocker by mistake, so then your list would have included modkilled mafia members and hence my post about the list.  

You're absolutely wrong about the mafia cop, only PART of its function is identifying other scum factions' members.  Another part (bigger IMO) is identifying PRO-TOWN power roles which can then be eliminated.  Imagine finding the doctor! or an unclaimed cop or whatever. 

As for lestatdark, that hurt you less than losing the cop would have hurt the town IMO.  Maybe the "power transfer" thing would have been a better, though still very imperfect, solution.  But just axing the cop would have been pretty much just ending the game in favor of the mafia, which would be a pretty dumb way to end the game IMO. 

But I have more sympathy for your position than SFB's. 

I guess I was; sorry.  But you're absolutely wrong:  the mafia cop is a very powerful role for DETECTING PROTOWN POWER ROLES.  Aside, of course, from (in this case) ensuring that you didn't kill a mafia by accident. 

And I've said before(I think) that had I known that people would have had a problem with it then I would have said no 

Everybody who would've complained or been against it (weather that being fair or not), would've been #1 suspicious and you know it.

Well, you did it incorrectly, I believe. 

Your list: 
2x Corleone mafia
Mafia cop
Mafia hitman

TOS's list (excluding modkilled mafia): 
2x corleone mafia
1x tattaglia mafia
Mafia cop (Tattaglia)

Notice the lack of a "mafia hitman" on TOS's list and the presence of an extra Tattaglia mafia.  That threw me off.  I thought you just said hitman instead of roleblocker by mistake, so then your list would have included modkilled mafia members and hence my post about the list.  

You're absolutely wrong about the mafia cop, only PART of its function is identifying other scum factions' members.  Another part (bigger IMO) is identifying PRO-TOWN power roles which can then be eliminated.  Imagine finding the doctor! or an unclaimed cop or whatever. 

As for lestatdark, that hurt you less than losing the cop would have hurt the town IMO.  Maybe the "power transfer" thing would have been a better, though still very imperfect, solution.  But just axing the cop would have been pretty much just ending the game in favor of the mafia, which would be a pretty dumb way to end the game IMO. 

But I have more sympathy for your position than SFB's.