Well I am sure most do but as stated, it is an internet forum. Hard to tell if someone is serious or screwing around. Thats the problem with written words. I would bet half the trouble is caused by misunderstandings.
Now, that is probably a lot to be said about how a person might be meaning what is said. I've had some experience in that area myself. Misunderstandings can happen so easily ON LINE! Also,
some go a bit farther (in the screwing around part) than
others do (then they take offense) and so a problem arises.
Something I once said, to a new member, made the previous poster think I was referring to him in a negative way, he approached me in a PM and I assured him that I was in no way talking about him. Case closed and we are STILL friends (thankfully).