Potential for hacking mass xp? With high lvl monsters constantly spawning would it not be possible to grind indefinitely? Read a couple threads saying there was a system for doing this but it got fixed in patch 1.13 Did Blizzard cap it somehow?

Doesnt Work Anymore

positioning mephisto in the right spot so his skeletons spawned but he didnt come and the skeletons gave quite a lot of xp and constantly spawned.
My group had 8 hammerdins standing in a group spaming hammers for hours watching our xp go up fast

The glory days. So how did they fix it? They just stop spawning or generating xp after a while?

Killed the XP in ubers sadly. Used to bone wall to make the adds spawn harder but that's all gone now

Figured it was too sweet of a deal. Thanks.