Registering to post on this message board DOES NOT require approval. However, you do have to use a valid e-mail address because you will automatically be sent an "activation link" which you just have to click on to activate your membership.
I just activated about 18 people who were "awaiting activation." You don't have to wait ... you activate your account just by clicking on the link you're sent. Check your spam folder if you don't see it or contact me.