I know why sometimes the posts come out duplicated even when you only clicked submit once. It's when you click "Submit" right when the the time goes to the next minute.
Example: 6:25 - 6:26 You post right when the time changes, so your post comes out twice, one in the 6:25 time, one in the 6:26 time.
Thanks for raising the issue. Next time it happens could you post a link to the thread here? I will go ahead and take a look in the system and see if I can resolve the issue.
