The only time I have an issue with RP (and I presume this is how most sane people feel) is when they act in a manner that lets the team down. For instance, I presume that Eyriwaen is not a White Mage in-character (because white magic is specifically restricted to very specific individuals and having your character be the unique chosen one in public RP is generally frowned upon), but that doesn't mean I'm going to unequip my job stone during dungeons or refuse to use white magic spells. I just gloss over that as gameplay/story segregation.

Most of the time when I run into other RPers, it's a fun experience with more interesting conversations between pulls. Definitely a pleasant change of pace from the endless quiet, or people ranting about dumb personal stuff >.>