Its from the PvP Revival discord after someone had a crashout for playing bad and getting flamed. This was their last message before leaving the channel.
The PvP Revival is a community for PvP in Final Fantasy XIV and the term “rainbowing” is when you swap between several jobs and are bad at all of them, and since you’re playing a different job each game, other players can’t consistently queue as your job to guarantee they’re not on your team
Honestly fck alot of people here, I came here to make friends but a good majority have no fcking life and are assholes. I regret even trying to communicate with people. Petty and childish. Literally get so fcking mad over pixels. Get bitched at for "rainbowing" well grit does it, he's cool. Night I'm out of here. Awesome to see how shitty most of this community is