And here's what Google Groups offers: http://groups.google.com/support/bin/
answer.py?answer=46465&topic=9244 is that you are supposed to tell
Google that you want to read groups via e-mail, then use the
filtering in your email client to organize the postings into threads,
and filter out those you don't want to read.
Do you bother with that? Do you know anyone who does?
I've been told that some sysadmins won't forward posts from google groups because there's so much spam and that Google just doesn't think it's worth hiring people who know and love usenet to work on google groups.
I haven't been using usenet for a while, but it would be a shame if it were allowed to go under. I haven't seen anything on the web that's as good as trn for making large discussions convenient.
First link thanks to twistedchick.
Addendum: Google's causualness about usenet seems odd to me. Not only could it be a better source of add revenue if more people read Google Groups, but letting Google Groups turn into a spam portal violates "Don't be evil".