it's kind of a big question that's hard to give a concise answer. i suppose first and foremost is because it's established /pol/ culture that if you can't vigorously defend your position against shills then you're either wrong or might be right but only intuitively and can't yet articulate it. in that case, it's good to sharpen yourself and get you thinking to refine yourself. if you're wrong, then you're wrong and need to change; either way, you win really.   the second thing i'd say is the palestinians' cause and plight are simply just, and the truth demands witness. the third thing, often there's banter and lulz. i love reading a post or meme that causes a sincere, unexpected belly laugh to erupt.    some peopleusually leftists or commieshave this weird law of attraction attitude in that if you ignore something, it simply goes away. it doesn't, it grows larger as evil requires apathy to flourish. ignoring a problem is the worst thing you can do. ignoring shills doesn't make them go away, if anything, it makes them think they're getting to you. don't get me wrong, that doesn't mean (you) them willy-nilly, but if you've got a witty quip or some insight in response, then post it. there might only be tens of posters at any given time, but sometimes there's a hundred or even thousands of lurkers. a lot of the time you're posting for their benefit as well. you're helping other articulate themselves.
Ireland