4) Because there's no gear grind, the only people there are people who *want* to be there.
the bolster effect scales. there is a gear grind. if you don't constantly upgrade, while I do, I'm going to absolutely crush you on gear alone. there are no tiers (other than the 3 colors). however, there are levels. and a 25 wearing something for a 15 usually isn't such a good idea.