I think thread owners/staff should have an ability to add a post in the middle instead of at the end of a thread. Ie when I once had a thread, I needed to make a post at the end of the thread on a later page for more info when it would've been convenient if the post was right after my originally made one.

It's a nice thought, but isn't a big need.
But it could still be made to help people find new information easily.

Why don't you just edit your post or something?
Although, there could be some use...
Erm... 4/10.

Ryu, because people often skip the posts that they have already read. Not many people read the same post again without knowing that there will be an edit to it.

RyuRan447 in some of my threads, ie contests, trading threads, I've reached a max limit and need another post to add more pokemon on.

Yes but so does other people why does staff get these special permissions and if so shouldn't they be for everyone, staff has no more needs than just a normal member..