I've on off played tank since ICC days, I refuse to lvl one in dungeons because of peoples mentality to pull big packs and people wipe, I did main a tank when I joined a Progression guild for SoO because my DK rolled same gear for frost/blood (apart from tier pieces).
I don't however play a tank anymore other than celes/ordos, but depending what happens for WoD I might pick up tanking again on monk/pally if I feel the urge to raid.