It's not that specifically, it's the lack of variety of opinions on vgchartz.  This is one of them involved.  Almost everytime something good is said about FF7 on a topic title or even involving FF7 in anyway, the same posters will go in there and give their extremely subjective opinion on the matter and won't accept anyone else's opinion other than their own.  They won't even argue objectively, they practically refuse and will constantly hound out anything good about FF7.    I'm not saying anything negative said about FF7 shouldn't be said, I'm saying that if it is going to be said negatively, back it up 100% objectively or don't say anything.  This goes with any game, subject, character etc.

If something is said positively about any game, it's actually ok to say anything subjective about it then.  Because it doesn't directly harm anyone.  If it offends you indirectly, that's your own fault and should learn to ignore it.  For instance:

 Let's say that I say "FF7 is the best game ever".  It's subjective, but it doesn't offend anyone directly because it's a positive thought as opposed to "FF7 is the most overrated game ever".  Both are direct sentences but only the first one is positive.  To say that you are offended by "FF7 is the best game ever" by saying that "it was stated in a factual preference instead of an opinion manner, so it offends me" tells me that you're just looking for an arguement.  This is the internet, it's obvious that people are going to say stuff like that, it's how internet culture works.  Although it is preferable to state IMO around statements like "X game is the best ever".  Which should be done everytime if possible. 

Is it so hard for members of vgchartz to just lay off of other people's opinions and voice theirs objectively?

Funny thing, I used to think Cloud and Seph were overrated, but the ammount of hate that surrounds them on the internet today kind of balances the praise out, don't you think? So now I think they are rated just fine.