I'm not trying to convince anyone. 7 months later, both sides haven't convinced the other, we continue to believe what we want, nothing will change that. Have I ever messaged you and stated, "YO BRO, U WRONG". Nope.
It's more of a balancing act really, a tug of war. I'm 100% positive that it isn't an attempt at convincing the other person (well, maybe in Maglor's case). It's more like, "well, this person just posted a list, rant, or post, I don't agree with it, I must refute it". It's more of a counter really, who can post the "loudest".
There's always going to be things that not everyone agrees with. On the flip side of that, I'm sure there are things we can all agree with and enjoy. We wouldn't be on this message board posting if we didn't have common interests. When I see things I don't agree with about toys or movies, I don't think, "MAN, I HATE THIS PERSON, WHAT AN ANNOYING ****", unless I've been flamed, trolled or insulted. I'm sure opposing sides can agree with this as well.