is a limitation is the number of ads allowed each 24 hours. If you try
to post more than the allowed 500 boards per 24 hours, you will get
blocked from doing so, and you’ll have to wait at least a full 24 hours to post again. 24 hours means 24 hours, not the next day. This is a limitation set forth by instantmessageboards.com in order to prevent users from over-posting to their boards.