I have signed up to the yahoo group, although I'm slightly mystifed as to why another mailing list is needed. I understand it would be a problem if there was a great deal of purely procedural CAMRA stuff being discussed here, but I don't see too much of that clogging up the UKRA arteries.
Also there's going to be a very indistinct boundary between the topics we discuss here and internal CAMRA stuff, and seeing as no-one's complaining yet about the volume of the latter, personally I'd prefer most of the discussion to take place here without us worrying overmuch whether it's too CAMRA-ish.