There seems to be a very interesting trend in how people are voting.
People want combat-oriented enchantments (Knockback, Fire Aspect, Punch) set to vanilla levels, which seems pretty reasonable. These same seem are largely okay with convenience-related enchantments (Fortune, Looting, Unbreaking) set to otherwise unattainable levels.
I completely agree with this trend. Some of these (Punch IV) would honestly break combat. The convenience enchantments really don't seem like they would be a problem, though.