When reading two or more posters on a forum arguing over a topic, it'll come down to if someone starts letting their emotions get the best of them and stop using logic. I've seen on many of topics whether it's politics to specifics on game localization where things start civil, but someone starts attacking the other. From there, I end up stop reading the back and forth as anything I could possibly learn is gone and while perhaps at first it can be amusing, it quickly escalates and at times can get really ugly.
Personally, I almost never get in an argument online, and the few times I remember I stopped because more myself than anything else. Outside of certain fictional series that I am really into and perhaps some small subject matters, I know that I lack all sorts of knowledge in 99% of topics related to life. I can understand surface level things about politics, religion, economics, but go any deeper and for the most part that's beyond my understanding of the topics. So if I make a comment and somebody starts going into much more detail about stuff, I may comment or ask a few questions, but generally back off because it would be disengenous of me to argue when I know nothing, and for an internet argument I don't feel like putting in hours of effort to respond. In the end, I still manage to come out of any debate/argument with some sort of new found knowledge, even if it's a little bit.
And that point is when they show they've done actual research into the topic and come with actual facts that have been tested.
