I got spam in my Inbox today based on the fact that I am registered for BloggerCon from The Williams Law Firm.
This is a horrible abuse of Dave having the registration list published. I think it's great that I can see who is going and someone taking advantage of this is a pure violation of netiquette. I've sent Dave e-mail informing him of this abuse as well as asking him to uninvite the person who sent this from BloggerCon (as the message claimed they were planning on attending).
Hopefully we'll see something on Scripting News today about this.
UPDATE: Looks like Scott picked up on this too and he is less than pleased to say the least.