ESO will fairly often hard crash my machine when I attempt to quit or sometimes at random. happened today at last boss of FrostVault. when this happens I cant even bring up my task manager, just results in black screen only solution short of unplugging my PC is to force sign out.
Playing your character the way your character should play is all that matters. Play as well as you can but never betray the character. Doing so would make playing an mmoRPG pointless.