"Call Out" threads

What exactly is the rule about mentioning character, guild, and server names? Some people seem to think you're never allowed to describe another player's character and what they may have done in-game. Yet, I've had Game Masters tell me to post a thread on the forums in regards to a non-GM-actionable personal conflict.

I've looked through the Code of Conduct and Posting Guidelines, but there's nothing other than a "no harassment" policy. It does not lay out an explicit ban against discussing other players...only when harassment is likely to occur as a result.

I'm only interested in clarification.

What exactly is the rule about mentioning character, guild, and server names? Some people seem to think you're never allowed to describe another player's character and what they may have done in-game. Yet, I've had Game Masters tell me to post a thread on the forums in regards to a non-GM-actionable personal conflict.

I've looked through the Code of Conduct and Posting Guidelines, but there's nothing other than a "no harassment" policy. It does not lay out an explicit ban against discussing other players...only when harassment is likely to occur as a result.

I'm only interested in clarification.