Hi all!  I hope this question is easy and fun to answer...

About how many people post non-binary questions or comments to english
language Usenet newsgroups everyday?

Your answer can be an approximation based on other statistics. 
Thanks!!!

-JB

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Clarification of Question by rook-ga on 30 Oct 2002 22:39 PST

thanks for clearing that up.  i mean all nntp newsgroups, including
alt.'s.  any figures on the moderated/unmoderated breakdown would be
greatly appreciated.

There are stats galore on this site:
http://newsadmin.com/

Some definition clarification may be warranted here.
Strictly speaking "usenet" is a select set of NNTP newsgroups
voted on and approved by usenet policy and administrators.

This does not include "alt.*" groups or special purpose news
servers, such as companies hosting their own support servers.

NNTP use for non-usenet groups is still quite popular.
Qualitatively I can tell you that non-binary usenet groups
have been on a decline for half a degade now because of the
unsolved signal to noise ratio problem.
That and the popularity of the Web and web based discussion
forums taking "market share" away from usenet.