Both threads were given major warnings in the past, and as far as the R34 stuff goes, it's gone. Anything particularly bad gets seen, and as always if you see something that shouldn't be there feel free to report it. The difference between each thread is that actual discussion happens there, as opposed to what amounts to pages full of nothing but spam in here. I give
this recent page as an example. I know what you're going to say, I picked that one out and it's one in a million. But because this thread isn't as quick-paced as it used to be, I can easily check every single post in it, and I could easily pick out many more examples.