by including bi-curious, you've made everyone who isn't completely sexually repressed a member of the LGBT-category. People are naturally curious about everything (well, most things at least), the only people that aren't curious about sex with the other gender are people that were conditioned to think of it as gross or immoral.
Either way, with that, your criteria for the LGBT-category became to broad. Following the common definition, I definitely do not belong to the LGBT-crowd. Following your definition however, I do (cause bi-curiosity). Bad survey, imo.