I don't think the OP actually used Usenet back in the day. The alt.* groups were always mostly a cesspool, there were very few usable ones past roughly 1995. The comp.* hierarchy was rather good and that's where the action was. I feel sorry that USENET is gone. The experience of using a good NNTP newsreader was way way better than the terrible phpBB forums that supplanted it. And the next generation of programmers si…
I should note that the BINARY usenet is still on fire, if you know what that's used for, that is.
My first experience with the Internet was via WebTV, and WebTV had a gated Usenet - only the users had access to it.
It was just full of red hot, vicious flame wars. In retrospect, it was the harbinger of things to come with social media in general. Take away the barrier of entry, let the masses in without any moderation, and it will turn into a cesspool.