Now hopefully when I hit post on this thing it doesn't prove me wrong but I've noticed that the time since posting at least through steemit seems to be based on when you first click submit a story and it opens the form.
Seems that you could use this to make all of your posts not show up until they were already thirty minutes old. I am not sure if that is actually possible and even if it is if anyone could gain any benefit from it but as a former software tester I always think about trying ways to break things and this one intrigues me.