Copy this:
http://www.sgforums.com/?action=post&thread_id=xxxxxx
Replace xxxxxx with the latest thread id + 1 (i.e. future thread
that yet to be created) For example, my thread id is 123456.
Replace xxxxxx with 123457 and start posting. The future person who
open thread id 123457 will post later than u. Cheers.