In classic/TBC when I played WoW, I had a strict policy of no women in the guild. I caught flack constantly, had my guild reported on a regular basis, all because we openly stated that females were not invited to apply or join. The reasoning behind this is drama. While a woman may not be the sole cause or catalyst of drama, empirically I feel you can argue effectively that as the number of women in your guild increases so does the likelihood for drama. I know from where we were placed, that this may not have been common practice, but in the top 50 world through classic/tbc it was not uncommon.
The question then, is have you or do you practice this? Have you encountered it, and as a male did it give you a negative interpretation of the guild? Additionally, have any of you encountered this when the guildleader was a female? Does this continue with a younger playerbase who is more homo-centric?