Yes, very unpleasant situation...
Last night I got the same e-mail from a different user, this morning I received it again from 'EdwardN'...
I guess banning the users will not stop this scum. But I am sure something will be figured out. Unfortunately, I am not much of an expert and I doubt I could give a sensible suggestion...
But what worries me more are a few messages I read on the Forum, related to this issue, by enraged users blaming it all on the administrators, threatening to leave the Forum forever, etc. I don't think this kind of attitude could help anything or anybody. And, then, isn't it a bit too presumptious to think that Avast administrators could have anything to do with sending spam through the Avast system???
Nobody, no system is completely immune to unauthorised interventions, and the violators will become more and more inventive. Throwing the blame around and shooting angry words from the hip will not solve the problem. I think we should be more supportive.
Sorry for the non-technical message, but I like the idea of an Avast community spirit as much as I like the program itself...
Good luck to everybody who can do and is doing something about it!