I've seen monsters drool, trapped them and got nothing. I can't say I remember any pain calls though, maybe I'll go look at some vids.
I don't acknowledge the existence of tiers because it's "fun," I do because their existence is a fact. Figuring out the order is like a giant, complicated math problem - although it takes a long time to figure out, there's only one right answer in the end. Of course, since there's no easy way of solving it, the list can take a very long time before it's as accurate as it can get (and even then the order may not be perfect).
It's the same as tiers in fighting games.
It is unfortunate when people try to use these lists to tell you what weapon or character you should be using (or some other nonsense) though, especially when the list they're using isn't even for the right purpose (single player vs team play). People that actually know anything about tier lists wouldn't be giving you shit about lance superiority.
