Couple of thoughts...

(1) I actually see less healers than tanks since 5.0 when they butchered SCH and AST. This is when I switched to tanking full time.

(2) I wasn't tanking full time before that because people expect tanks to know the fight perfectly even if the content is 1 day old. It can honestly get stressful at times and sometimes I really just don't want to deal with it.

(3) It doesn't bother me now because I just don't care what anyone says in game anymore lol... *hidden skill: IDGAF Activated*