This whole thread is ridiculous. First of all, why IS is on the regionals board? I hear more Delta ops calls and PA announcements than anything, but maybe that's just because of where I usually fly. And if it's another tired attack on "Regional Pilot Unprofessionalism", need I remind you of SWA with the 'gays, grannys and grandes" rant? Fact is immature individuals exist everywhere, and when they're bored they come out the most. You don't need to pontificate to the lowly regional pilots about maturity.
Now as for solving the problem. IGNORE THEM. 15 people shouting YOU'RE ON GUARD! doesn't help. Telling these children to shut up only instigates them. When someone makes a scene on guard, they want to get a rise out of people. Telling them to shut up gives them exactly what they want. If we all make a pact to ignore them, they will stop, I guarantee you.