DPS: Why is it so dang taboo?

[Shurrikhan]

Cut myself off like a dingus. Anywho, I remember the one time a drg tanked almost the entirety of some level 50 dungeon because tank just... seemed to not know how.
Arguably did a damn good job lol.

I've tanked every 60 dungeon the whole way on DRG by now (though final Moratorium boss was a pain), and only a couple times lost threat (usually to healer on a mob I hadn't been critting enough). Tempted to petition for hybrid role.