Jim, it takes two to tango and, as we keep saying, ignore the trolls. Raggy, Steve, myself and some others no longer react to their nonsense directly and talk around rather than to them. It keeps threads a lot cleaner but as long as you keep addressing them, they will continue posting their nonsense and getting their rocks off on all the attention you lavish on them.

I am not saying this as a criticism of your valiant efforts to put them in their place but as a suggestion of what may be a better way. As with any other advice you are free to take it or leave it.