I turn it on at the beginning of my sewing session, and leave it on if I have to iron or cut, then turn it off when I stop, usually to make dinner
. I mean they just ate yesterday!
As far as posts being moved, there's a brief explanation of the forums on the home page:
http://www.quiltingboard.com/forum.php
One of the biggest reasons I see stuff getting moved is if it's a show-and-tell pic, it goes in pictures. If you post a picture to ask a question (what color sashing etc), it goes in main.