The weapons overenchanted make the server has a very large imbalance of PvP.
Particularly, I do not like the PvP that lasts 1 second by a magician you have a Arcane +200 Mace or an archer who has a Draconic Bow Focus +150.
I do not know if achievement explain what I mean.
In the end, only a matter of taste, I prefer to "enchant retail rate"