You had all of the mobs standing in one spot (warping mobs to Y position without X) and then attacking them from a safe spot.
The mobs look normal to me: they give the normal amount of exp, they drop the normal drops, they spawn where they usually spawn, walk like they usually walk. There is no warping to Y or whatever. I was watching a television program while playing, and it looked normal to me.
I watched you train for a few minutes. All of the mobs on the map were standing in that one spot; when they would spawn, they'd walk to that mob and remain there. Not to mention, several people reported you for hacking, as well.
