I agree that your time is better spent convincing one "I don't see why anybody needs more than five rounds in a magazine" deer hunter than it is convincing rabid antis; but in an online debate you often affect people who do not participate; but only read. Depending on the environment, it is worthwhile to preach to rabid antis - if only because you don't let them preach their lies unchallenged and unconfronted. If they have an audience, then I think it is worth the time to challenge their misrepresentations. If they have no audience, then it probably is a waste of time that could be better used elsewhere. The antis are going to be pulling out all the stops to tarnish gun owners and make gun ownership a "problem" with the Heller case coming up. Not only will all of us have to get involved and defend the Second Amendment in the coming year, we are going to need to be on our "A" game as well.