I'll have to agree with JJJ. xD I've found that the low rates, at least from personal experiences, have the most arrogant, elitist-inclined players in the game. Which is strange, as most say that they find them in a High rate, when I've only seen a few. o_o Thus, it might just be a matter of what you see? =P
I'm one of the laziest players one can find, with the exception of JJJ, who just sits around on a novice all day from what I've seen and heard. xD Thus, all the grinding gets agitating as well, as while fighting monsters can be fun for a while, it does get old sooner or later, and low rates often require you to constantly kill endless supplies of creatures to get even semi-acceptable gear. D=
... I blame my laziness more than low rates. xD Still, I also blame most low rates for increasing the interest in grinding with things a little more interesting than the same old thing.