It is interesting. IME in real life and in OkCupid, female self-identification as bisexual correlates quite strongly with the geek/liberal/poly/kinky meme complex (edit: mirroring your experiences, didn't read carefully enough). Out of my top matches in OkCupid, over 80% of women interested in men seem to self-report as bisexual.

However, also IME, bisexual identification usually doesn't imply being biromantic! Many of those women have had, or would like to have, sexual experiences with other women, but still may prefer men in romantic relationships almost exclusively.

FWIW, I support adding a question about romantic orientation in the next survey.