Family Share Beta Scamming

I think it'd be a good idea if we can get an announcement up that is along the lines about "The beta invites aren't tradable, don't accept any mysterious offers to get into it" etc, etc. I've seen some people in various places, such as TF2 chat trying to scam people by "selling" them a beta invite. People think they're tradable when they aren't, it's something you get by email.