Ben said:Something you could perhaps try is keeping a database of all your bot's posts
already do that...
and cancelling them if the original article gets cancelled.
Not sure how to do that... can I query for canceled jobs? Or would I
need to just check every post and see if it was still available?
Of course, in this particular case, apparently a message was canceled
on John's newsserver but not on mine (GigaNews). The bot runs on
GigaNews; it has no way to know about cancels on other servers.
I have never heard anything negative about GigaNews (such as that they
don't honor cancels). One thing I can say for sure about GN - it's
darn fast. But, if I find that they routinely don't honor cancels that
other servers do, I'll regroup.