I won't play at MB anymore
I decided after the first reports of these beatings that I would not play at MB. They offer inferior games, and anyone (AP or not) would be a fool to go there without an armed bodyguard who was ready and willing to start shooting in your defense. I have shared these feelings with family members and co-workers who initially did not believe that a modern day casino would behave as if they were still owned by the mob. After showing them the news stories, they changed their minds. I personally have convinced 5 non-APs to change their travel plans in the last 3 months and stay at places other than MB affiliated properties. This is the best avenue of attack, IMHO.
Just make sure that everyone you know understands that gambling in one of these casinos is equivalent to gambling in a mob run casino in a third world country where you have no legal protections, whatsoever. Most non-AP's do not understand the finer points of card counting and when you explain that their bets could be mistaken for a card counters, and that they could then be beaten and end up in the hospital, this is usually pretty effective.
If these casino's want to intimidate AP's then our job is to make sure that this intimidation spreads to as many non-AP's as possible.