Just going to say, I've been on CS two years now, and have pretty much never seen anything that just says "NO COPPAS!!!!!!1!!1!". It's true, I myself am not a COPPA, so I've never had the opportunity to be bullied, but it mostly seems that people try to make sure there are good ways for COPPAs to communicate and join in.
I just did a bit of reading up on the Child's Online Privacy Protection Act, and all it seems to do is keep people from collecting personal information from children under 13. This seems to mean that CS's rules about posting on forums and sending PMs are more for the purpose of keeping children from bothering older members. I suppose it would be possible for an older member to make a child give out personal information, but it seems to me that CS really doesn't need to have the whole COPPA thing.