None of these should be discussed with anybody who is not a fan of your team. Its like the old joke about teaching a pig to sing. It merely wears you out, and only annoys the pig.
Blogging gives birds of totally different feathers a chance to flock together, and people who were never meant to socialize with one another get together and piss each other off.
And unless everybody involved in a debate is a trained expert on the subject of the debate, its likely that there is going to be some scrapping going on. And that is soooo boring, I can't begin to express my contempt for it. Next thing you know, folks are swinging their IQs around, and then someone loses an eye.
And you can have two guys who can rebuild a Chevy from the ground up, and they will argue about some petty crap, because one guy likes the makes, models, and years that are different than what the other guy likes.
And then there's the times when you know damn well you are right, what you mean when you say it, and that they are wrong, and/or misunderstand you. That's a special kind of annoyance, right there.
And that is why I very rarely comment on the blogs of others anymore. That, and I like several of you, and I always seem to manage to piss you or your regular commenters off.