I'm gonna throw out my cents towards there, I don't care if you'll warn me but I'm gonna clear this out
RQ basically means "Rage Quit", which clearly is used to offend a player in order to provoke the one who got offended by this. According to Frost's screenshot, Iceblood used out to offend Frost by saying "RQ" when he said "brb" as Frost wanted to quit and Iceblood joined the server when he didn't even know the situation, so he can cause out an insulting war towards each other, and after THE ONE (Iceblood), yet which is gulity, tried to provoke Frost in order to get him reported, as like having personal grudges towards him
Maybe I could not be accurate, but I'm trying to clear this out by the actual evidences on the report