And don't be afraid to critique the moderators, admins, or machievelli. I think some people see mach's name or the moderator status title and think 'man, if I say anything negative, they'll give me a negative review or ban me.'
Nothing could be further from the truth. It doesn't matter how experienced we are at writing, or how high we are on the forum chain-of-command. We all need help making our writing better, too, and any help is useful. None of us is ever going to give you a hard time if you're giving a critique that is intended to help us improve our writing, and we need that help just as much as anyone else. Best-selling writers have editors who read through and critique their stories, and if best-selling authors can use help to write better, we all can.