Because Twitter isn't an echo chamber and there are opportunities to reach people that still have relatively independent minds.  It also allows you to challenge the bullshit and lies that are continually propagated by the Left. Our community here is great, but it's an echo chamber.  There's very few people here that aren't "converted". Twitter is a place where we can legitimately add to the ranks.  And yeah, Twitter fucking sucks.  But I refuse to leave a fight just because it's not easy.