Sometimes the weird achievements can be fun, especially if they come with titles and the like.

The one I've been clamoring for since I started playing is:

Most Interesting Healer In The World
"I don't often heal, but when I do, I do it in cleric stance"
Reward: (title) Most Interesting Healer

This is a bit screwy with the change in cleric stance, but it could now be something along the lines of 'While in a pre-made group (you wouldn't want to afflict Duty Finder with this kind of nonsense) use cleric stance x number of times while in light party content'

How about you? What kind of in-jokey achievements would you like to see?