Sycamore,
If it turns out that a group of us is formed, it would be interesting to see what results we would get. It would probably take a little bit of exerted effort, time and sacrifice on our part, but maybe the results would be worth it.
As for the regulars who go down there and have an attitude of "I can do whatever I want" can be a problem. But I have approahed some in the past also on a one-to-one basis and got favorable results. It's not a guarantee, but it at least an awareness or concern is presented to them to think about later on after they leave.
I'm open to any ideas from others.