Posted by: Yax
EDIT2:
Hey, this means I might be able to post while capped. Cool.While it might seem like that's what might happen, it won't. The only thing it will cut down on is browser rendering time.
In short, when you hit the submit button, the createpost.aspx page (always according to the OP's post - in effect, you're always replying to the OP) is loaded twice automatically by the script. The first is to gather data to make the post submission valid. The second is the actual submission of the post (ie. the equivalent of hitting the submit button).
So it's not taking any shortcuts in the process, it's just hiding the middleman (the createpost page) from you.