I agree with you. On occasion I get very passionate about my arguments, and sometimes I simply like debating with people. I respect the majority of people on this board, and thankfully the people I don't respect have been left behind with time.
I like everyone at GOG and I try not to let my disagreements with other people filter into other threads. In fact, often times I find myself debating with someone in one thread and then agreeing with them in another. I also appreciate seeing other people's points of view, even though it sometimes feels like I'm bashing my head against the wall (although I'm sure I'm probably the wall at least half of the time in the arguments).
You're not alone. I feel exactly the same. And it's weird when it happens, but it works. Going head to head with someone on a topic of disagreement in one thread, and then heartily agreeing with them in another at the same time.