Sometimes you might feel you're making the right points, giving your opinions about some threads but do not feel threatened when someone quote you wrong, try to prove yourself right if you're sure of your points or take corrections if you discover they're right. Note that no one knows it all and there are lots of people on here that might be far more inteligent than you, so sometimes instead of arguing it's best to take corrections and learn.
Generally, the forum consists of mixed opinions. In fact, you have said that no one knows at all, that is why we don't need to pretend that we know everything and always prove that we are right. Sometimes we need to accept that we are wrong even if we think our opinion is right. Yes, there are intelligent people but that doesn't mean they are always correct, they will also commit mistakes and errors.