For example - from Theymos : "Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here."
If betcoin.ag was to advertize using paid forum ads (which is highly likely) , which one of you will threaten Theymos or BadBear with negatives for advertising them ?!
Fwiw, a staff member actually joined this campaign recently. I called them out for it in meta (for not doing the research) and they left within a few days.
If Betcoin were allowed to advertise anywhere on this forum, I would call out whoever was responsible. (like I have here)