Yes I have played on pvp servers. I enjoy pvp, when on a pvp server....I pvp, pve isn't my focus. Lots of titles still embrace pvp areas, Guild Wars 2 and Star Wars from the mmo genre. Yeah they are failed games, but pvp had very little to do with that. (In fact I would argue that pvp were their only redeeming qualities) Same with The Division and that zombie survival game. I don't see the harm in having a pvp zone, I mean no one uses Diadem anymore.