No, I haven't quit. I like supporting and helping my team and dislike damage rotations. I prefer reactive combat with active decision making not rote combat.

I won't ever quit healing unless they make "healers" into "dpsers". At that point, there's no healer to quit. I'd either quit the game or, if I did not, swap to whatever the most support oriented, least "dps rotation" DPS class (probably SMN, maybe RDM) is, or to a tank if there was one that actually had a lot of party support options that were viable...which there really isn't since Clemency is a no-no. I like GNB part-time but don't know that I'd want to main it. Maybe WAR, I dunno.

But yeah, I haven't quit healing, I like healing. As long as healers aren't turned into DPSers - as long as at least ONE isn't - I'll keep healing because it's what I actually love in MMOs and games in general. Healing, Support, and in games that allow for it (MMOs tend not to), Marksman/Scout/Sniper.