Hey, welcome. I'm pretty new myself. I just wanted to share something I discovered about posting.

When I am composing a long post, I sometimes time out of my log in as a member. So, if I hit the "submit reply" button I get a message that I am unauthorized to post (since I am no longer logged in) and I have to log in again. But, if I always preview my post before actually posting it, I get a chance to log in again without losing what I have done.