I know how you feel. I wear suits most of the time and I have a certain vintage 1920's/1930's look to me (I wear my kilt, but not all of the time yet). Often times younger people will say, "Wow you're pimp," or some remark such as that. I'm not a pimp and frankly I resent the connotation of the remark, but over time I've come to live with it. Because of the way I dress, I'm prone to get remarks from "ignorant" people. They don't really know any better and would rather make an assumption (and use poor language skills) when complimenting a person's wardrobe. My suggestion would be to just accept the remarks as a complement (which most often they are, they aren't intended to make fun or imply something rediculous) and ignore the fact that often times people aren't as educated as we'd like for them to be.

And hey, if the actual goths are giving you a thumbs up, then they like what you're wearing... it's a complement.