Disclaimer: I primarily stick to the Spoiler sections so I'm likely uninformed about a lot of things people are talking about here.
I think the rules are perfectly acceptable and I believe that by posting we are accepting and agreeing to comply with said rules/policies. However, the enforcement is sometimes lacking. Below are a few examples of what I mean:
I'm not saying these problems occur every time a mod/admin steps in. I'm merely commenting on things I have seen in those posts I have actually read, which I see as an issue.
One problem I see is sometimes Mods / Admins jump in with a remark that is, in my opinion, more snide / rude/ offensive than anything previously posted in the thread to 'warn' people that they are beginning to go down the path that will result in a Ban / Suspension / locked thread. I think it would be better in these instances for mods/admins to just PM the offending poster(s). And I understand it gets frustrating to 'police' forums, but if mods/admins lose their cool and make the same kind of posts they're trying to prevent, it doesn't really solve anything.
Another problem is when the mod/admin intervention is vague and directed at an entire thread in general. There's a difference between a friendly heated debate and a rude heated debate. There's been a few thread I was involved in in which I felt people were doing an excellent job at keeping the text passive. But after Mods/Admins jumped in, I found myself re-reading all the posts trying to find the hidden jabs and such. It kind of promotes a sense of paranoia. I don't really agree with calling people out in the open, but if you're going to jump in and slap down a thread/debate in the open, might as well be specific.
Also, when 3 + Mods jump a thread within the course of a few hours before anyone else even comments. I understand the need for authority figures to support each other, but sometimes it comes off more like people just throwing their weight around. I think if one mod is handling it and people are complying, there's no reason for 2 or more to also jump in with a bunch of caps locked threats, etc.
Also , going back to the non-specific comments. I've seen cases where multiple threads have equal "heat values", but only one gets slapped down. And since it's not specifically clear on why that one was selected to get slapped down, it tends to make one wonder if it the choice had as much to do with the posters involved as it did with the actual posts. This (I hope) is simply a by-product of not knowing exactly why one thread is being moderated and not the other(s), but as it stands it leaves a lot to interpretation.