I don't get offended by it and I usually don't bother correcting people because my name is kind of misleading so it's really my fault, hah.

The thing that baffles me is when people call me "they", which seems to happen a lot.  If you're not sure of my gender, it takes literally one click to check my profile.  I think these days a lot of people are so paranoid about referring to someone as the wrong gender that they just call everyone "they" to play it safe. =|