People have a right to their opinion, just as people have a right to *form* an opinion in a balanced environment. I'm not making any accusations here, just trying to give an idea of what is and isn't censorship when it comes to comment moderation. Some comments if left unedited or undeleted can be a form of censorship themselves - especially if they are allowed to reach (a) cacophonic level.

Posting multiple comments under different names is an abuse that warrants not only outright deletion, but public exposure and a full ban in my opinion. (This technique was used widely on Jody Dunn's blog during the Hartlepool by-election.)

A common technique of trolls and freepers is to throw in off-topic comments that are deliberately designed to divert discussion away from the central point of any given post. Such posts should be seen for what they are and removed. That's not censorship, that's the *prevention* of censorship.