Does it help you think about things from a different viewpoint?
Most assuredly and your contributions to the Eliot Rodger thread are a perfect example.
But arguing is only a small part of what goes on at A2K.
I'm partial to a thread where we compare different beers we've tried and I host a humour thread where we make up captions for zany cartoons.
Farmerman hosts a thread on sailing ships and another on war art.
And there are countless others that deal in music, books and nature that are interesting to me.