There are 3 types of double posting:
1. Accidentally sending the same post twice (This one doesn't get you in trouble.)
2. Updating your topic. Kind of like bumping your topic because you've made an edit to your sprite or you've added more poses etc. (This one won't get you in trouble.)
3. Posting something then posting another thing straight after it. If you have something to add that you've forgotten, use the edit button. (This one will get you in trouble.