I main PLD, my best friend mains RDM. We both get frequent use of Clemency and Vercure, both on ourselves and on others. I have personally benefited from my friend's ability to Vercure when an inexperienced/unattentive healer has gotten themselves killed - yes, I realize that as a RDM he could also have raised the dead healer, but Vercure costs less to cast.

I'm just gonna come right out and say it - like it or don't. If you are a healer and you are finding yourself insulted by someone else playing their class (because yes, a PLD using Clemency, and a RDM using Vercure IS playing their class) then you are very likely suffering from a fairly considerable emotional complex. Here's a secret, folks. Might want to keep this one to yourselves, but I feel I can trust y'all with it...

THIS IS JUST A GAME. GET OVER YOURSELF.