I still wouldn't push moore's videos. If he gets something decent every now and then you are still ultimately supporting a speaker that will encourage strict gun laws.
That is great that the all pervading media culture we live in doe not affect your views, but there may be some other non-gun owners out there who might be reached by his clout (as opposed to say Alex Jones) and the way he can present his views (as opposed to most of us with a cell phone video on youtube).
Just sayin this might be an arrow in the quiver, as it were.