Don't be too sure of that. When I walk around topless, people stare, (but it's not in lust or admiration).
Is emsr2d2 a female? I never knew she is..I thought she is him.
It doesn't matter in this forum; it's the answers that are important. The only time it crops up at all is if we refer to a member by a third person pronoun. If the name doesn't make the gender clear (as in Bob, Verona), Some of us use s/he (she/he); others use they; others still make a guess, and sometimes get it wrong. Nobody is offended.
It's interesting though, that most students will assume that a teacher is male unless their name makes it clear otherwise.