Reasons:
1) They're ugly and horrible, especially the walking animation.
2) PSY could sue ROBLOX for the gangam style dance (the /e dance animation)
3) They can make games break.
Support of you wish.
the little goomba
'They're ugly and horrible, especially the walking animation.'
-Can't handle change?
'PSY could sue ROBLOX for the gangam style dance'
-Other 'non' roblox games use it as well.
'They can make games break'
-Elaborate.