J,
I don't think that works. Groups.io will still create a hashtag out
of any pound sign and in doing so, I believe will mangle the thread
title.
Oh, right.
As seen in Full Featured Digests and the Messages section the hashtag will be pulled out to the end and made into a button shape. I forgot about that. In individual email it just passes through unmangled.
My email-centrism trips me up again.
Shal
Shal Farley