Clemency is a strange one, it's pretty crippling for the PLD to use compared to the other tank sustains but it's also a pretty handy trick to buy me time for an extra holy or two on larger trash pulls.

I'm actually a pretty big fan of Vercure though, I've healed a few expert roulettes with it when the actual healer has been out of the picture for whatever reason and it actually almost makes dungeon healing a bit of a challenge, certainly way more so than usual.

Eitherway I don't really take offence to players using them, I just see it as an invitation to DPS harder.