My spouse also has some anger management issues, and has learned over the years that when he's in a rage, the best thing to do is get off the internet, and go outside and ride his bike for a few hours to cool off before he says something he'll regret. Then when he comes back, he's in a much better head space. (He's not a streamer, he's a researcher, and usually it's someone in his department that pissed him off.)

Not sure if Pyro ever learned a similar lesson. Don't let people needle you, and if they do get under your skin, disengage ASAP and stop interacting.