Mylot postings - if you are the first to post

No, there's no rule that I read about that but as far as i know is that you get extra credit for rating discussions and making comments in a discussion you started. though they don't show it in the number of posts, I'm pretty sure becasue i notice that when i do those extra stuff, my earning increases.

I think there will be no difference if you are the first one to post if you did not do a quality post like answering it with a yes or no.

Not that I know of. It isn't in the rules.

dont think so, but im not for sure...