The Good the Bad and the Ugly!
HexRPG is a Harry Potter fan site. It's a lot of fun, and I've met many wonderful people on it. The problem is how they handle the inevitable personal conflicts that arise.
Someone roleplaying as an enslaved black girl described her "masters" as "very nice" and the moderators refused to step in and say how unacceptably racist that was. A trans man was sexually harassed by another user, who also harassed many others both sexually and emotionally, but this user was allowed to continue on the site. Another trans man was attacked for being trans, but has been disciplined for the "negative tone" with which he spoke out against this injustice. An eleven year old girl was harassed so badly that she had nightmares and she's afraid to leave certain areas of the site that a certain user can't get into.
Hex has a policy against "shaming" other users for their negative actions. Unfortunately this leads to a code of silence whereby multiple people were sexually harassed by one user, but they were too afraid to speak about it publicly, and nothing was done by staff. This went on for months. It also means that if a victim of harassment, transphobia, homophobia, or racism speaks out against their attacker, the *victim* would be punished under this rule.