Please take my suggestion.
1.) See offender.
2.) Call GM.
3.) GM responds.
4.) GM witnesses offender.
5.) GM takes action.

I know the work load would be heavy at first, but as you remove these people it would reduce the amount of people doing it. If SE was more pro-active you could surely almost remove all of these people.

I'd like to see a scorched earth policy.
I know they have a lot to deal with relating to RMT, but I really think this should be looked at.