Not really advice, but I started talking about feminism here and immediately dropped in karma. The people arguing against me produced unbacked assertions contrary to my points, not doing a modicum of research. My responses took one to two hours of research.

If you care about the answer to a question and not just feeling happy because you think you're right, you should do the research on your own. I spend a lot of time arguing against atheists on /r/DebateReligion, and I have to do the research for them. (Guess what: 2,000 years of people practicing a religion with a strong tradition of exegesis and discussion means that they aren't likely to make mistakes about how to practice their religion that an outsider can spot in two seconds!) I expected people around here to realize this. I was wrong. Maybe I should write a post about it.