It hasn't aged too badly, but it's from an era where you were not necessarily expected to figure everything out on your own -- talking about it with IRL friends or reading tips and tricks in a magazine (or on the early Internet/Usenet) were pretty normal. I would say give it a try but don't be hesitant to look for a guide if you get stuck or lost.
Twitch probably doesn't care beyond reputational damage/liability.
a settled lawsuit between Twitch and Beahm, where neither party admitted to any wrongdoing, and his contract was paid.
In fact it sounds like Twitch made an effort to keep it quiet, which was successful until these former employees spoke out (hope they don't suffer consequences)
Edit to add: Which is not to say there couldn't be separate consequences. It's just not going to come from Twitch. I'm sure a certain three letter agency is quite a bit more interested in Beahm now.