My brother and I honestly are a bit like Sheldon, but not as extreme, and those who made the comparisons are the ones who don't laugh at him or us, so we've never minded the comparison. I even liked how there was an asexual Aspie character that I could relate to in mainstream media... until he got a girlfriend and the fact that he's not interested in the messy stuff became both a daily punchline and a shortcoming for him to overcome. The only thing worse than the belittling of asexuality as a lifestyle is how straight Raj's gay tendencies are used as nothing but a constant stream of disparaging jokes. It's not the geeks that should resent the show for making fun of them - it's the LGBT community, srsly.