Isn't that the guy who kicked off when he was killed PVPing even though that's what he's known for? I'm sure there was stuff in Reddit about it before I left.
It doesn't excuse what he did, but there's a lot more to the story and it has to do with a group of griefers that orchestrate ways to tear apart organizations. They have voice chat planning meetings where they discuss mental disabilities of other players and how to take advantage of that so that they can get them to quit playing the game.
They plan out memes and videos that can be released at the right time to maximize the impact.
They specifically targeted Avenger One with the purpose of trying to get him to combat log through the use of bait/alt accounts and stream sniping.
Some members of that organization didn't like what they were seeing and turned over discord chat/audio logs over to Avenger One, which he released in a long video. (Definitely a biased video, but he plays long audio logs and isn't just picking out small snippets).
https://www.youtube.com/watch?v=qqu9O8zCWUI
I've probably only seen 5 or 6 of his videos, but from what I have seen he does a lot of research into figuring out the game mechanics and how to dogfight effectively. So, combat logging aside, I think he's still a credible source of information for things like this.