> a handful of people, sometimes only one or two. If I could only ignore them, the computer conferences were still valuable. Alas, it's not always easy to do.
> This is what killed Usenet,
You've got to be kidding!
The fact that Usenet was a protocol, with no favored UI (not even a web UI) meant that you could implement "only ignore them" in a totally reliable way. Indeed, this feature was so commonplace that it even had a name: a "killfile".