DISCLAIMER: Potterworld or Droobledore LLC is not in any way affiliated with Mojang AB, J.K. Rowling, Warner Brothers or any company, copyright or trademark.
I agree with this, yesterday I was doing parkour in the first Halloween quest and someone AFK'd on one of the blocks for a good twenty minutes. It was very annoying having to go around them and because they AFK'd it was hard trying to jump to the next block, I would love to see this implemented!