Earlier quoted context omitted.
This is all I thought Usenet was used for at this point.
People still discuss stuff... :) Most people these days know of Usenet as a source for pirated content, but people still do talk there... https://groups.google.com/forum/#!forum/alt.callahans I always felt like Usenet was slow, and the idea that you'd have to ask the server for new changes (like email) rather than getting them pushed down to you is what I believe "killed" the platform. Plus, Usenet was distributed so…
My impression of Usenet's death is closely related to your "hard to use" summary: it required people to install and configure a separate client, in an era when many forums were becoming available through the web browser folks already had. (Standalone email clients are far less popular today than they used to be, too. But Usenet didn't remain essential until web interfaces became usable the way that email did.)