Personally I update the spam filters in my inbox once a week. Sometimes it seems tedious. I don't advocate for the casino. But there is one point. Whoever knows your email may have registered. Is that a large number of individuals?
I think this is the case everywhere, in every area of the law...
Did I understand correctly that you have your own network of sites where you show ads? So it is similar to Google's media network? Or did I misunderstand?