“Fixing anticheat” is really vague, but if it just means dealing with bots, that seems perfectly doable especially since on paper, all bots act the same and pretending to be human is a hard task. There is a video by uncle dane (I think) that says that with the money that valve has, it’s completely viable to get rid of the bots and that they can even use this as a chance to revolutionize cheat detection, just like they revolutionized so many things before.
We still have other nitter intances like nitter.poast.net at least.