I am usually here because I like calling people on their bad arguments. I dont care as much about what they are arguing as much as I care how they are arguing it.
America is pretty lacking in its ability to engage in this manner. I can talk/argue with some good friends like i do here, but cant get that interaction from family or coworkers or strangers for that matter without stretching acceptable societal standards.
I know i wont convince someone that X is wrong or that they shouldnt believe X. Instead i try to get people to see that their own reasoning behind X is not as solid as they might think. A lot of that is picked up thru social osmosis, where people mostly regurgitate what they hear without knowing the reasons behind it. Both parties are built on that single fact. So I dont try to get them to defend their stance, which just makes them defensive, I try to get them to explain it, and hopefully let them see the holes in their knowledge. The hope being that once they see the flaws, they do their own research on the why behind their stance. That way they can either change their own mind if they actually look up the reasoning, most dont even bother to look it up, or they can come back with the same stance but have the real arguments behind it
At which point it is a much more worthwhile discussion. However, I have found that the PF acts as a collective. If I am arguing with one righty/leftist and call out their bad argument that often another righy/leftist will step in to fill the void in the first's argument.
While that speeds up the argument process, it defeats the purpose of my arguing to let others self educate. Once someone else steps in to help, the first person rarely takes it as a moment to learn.