Please, reserve sarcasm for bullies. I think that not knowing something and wanting to learn about it is not a defect but a virtue.
That's my way to say that I'm up to my ears of members doubting about other members ability to have an opinion. I don't want to see any more posts where the answer is something like "How do you dare to say something if you don't work in F1?"
Puh-leeze, read this (it's the 574th time I give this link):
http://en.wikipedia.org/wiki/Ipse_dixit
This is not Wikipedia: if you want sources, find them by yourself. It's sooo easy to do that (or, if you doubt the assertion, find a source against the opinion you disagree with and post it, by all means, you "sourcerers").
Also, if you think a post is of low quality, use the report button. Preachers should stay in church: after all, we, mods, can nag everybody by ourselves, we don't need your help for that, thank you very much.