It's working now, as I can see my morning message in the group archive. On Oct. 21 I got the message below from Yahoo. Since then, either some authority on lpsf-discuss has restored my ability, or else a cosmic ray hit just the right spot on Yahoo's servers. :-) Either way, I thank the responsible parties.
I hope it's OK if once a week I post a summary of headlines from CalFreedom.net.