That could apply to any part of the forum. People are fallible. Moderators make mistakes. And no matter what the rules are and how they are regulated, there is always going to be groups of people dissatisfied with how certain parts of the forum are handled.
With with staff procedures in places that produce a checks and balance system, there are still posts that don't get moderated that probably should, as well as posts that do get overly moderated.
What I saw last weekend in the PSRI forum was some of the most vile posts I have seen in a long, long time. It is basically a free-for-all in said forum with many, many members skirting a line so thin you would think they were professional ice skaters. And a few days later, the same garbage spewed forth from the same forum causing more shut downs. It makes no sense (to me) to have a section of the forum that is constantly churning out such vile things, as well as the appearance of inconsistent moderation.
The staff has tried making changes to the rules, to try and create some kind of ongoing civility in said forum and it hasn't worked. Why keep a forum that doesn't bring in money, requires constant romper room / garbage - hate speech removal, were so many grown adults go to spew hate towards one another on a tech site?