If this is your first time doing this then you may not notice that you may be looking at my post rather than your assumed post. There will also be a banner saying it's the same thing, "Post anyway?" If you don't tell it to post anyway then it won't post and mine will still be there.

To test this "duplication notice" you can copy paste any posted link, change the title or keep it the same makes no diff, BUT make sure it's going to the same subsaidit.

Also, the best way to see what you posted, click on your username in the top right, then the top left ar tabs and click on "submitted" : https://saidit.net/user/hennaojisan/submitted/