KRR is as peaceful as it's ever been, and there is a much quicker and more competent mod response than there ever has been. Much of this has to due with the prevalence of super mods: when I was first a mod on the lolezboard, it was one mod to a forum, and there were fewer admins. Granted, the board was smaller, but a lot more vulnerable. When we moved over to the phpBB, we went to a super mod-centric system and we've pretty much stayed there, and things have been easier.
At this point, we have mods who mod one or two forums, super mods who mod all forums, and many more active admins. This means backseat modding goes beyond unnecessary and enters the realm of irritating. Now, that isn't to say that no one should talk to mods/admins about problems they might have with regards to posting, interactions or what have you. Rather, it means that correcting people in topics and basically going "hey! HEY! DON'T DO THAT!" gets to be a bit much. Obviously, as Riolu notes, it's too much to say you're going to ban someone for obvious reasons (also it sometimes makes you look like you're sorta nuts), but also going like "your gonna get baned mang!", correct or not, is irritating.