crossposting

Gerard: "BTW Can we stop crossposting?
I reply on rec.music.classical, using novabbs.com
I would like to post more replies, but not so when they also appear on
RMCR."
I agree. I wasn't overjoyed either when I saw I had inadvertently posted
on RMCR  -  the hate newsgroup  -  and not just on RMC, by responding to
the Karajan topic.
I have no idea how this works technically, but let's not do this again.
Or, alternatively, let us know when a topic is double barrelled, so
people can make up their mind whether they want to participate in more
groups than one.