Yes, we are planning to add gay/lesbians support, but we have a problem because the comments you post are limited to your gender (girls can see other girls comments, boys can see other boys comments). But we are definitely thinking about it!
Uh, this should not be an "oh that's for a future version"...in an urban city (which is presumably where this kind of app would be most used and most useful), you are alienating a good part of the audience.
Gender fairness issues aside, this kind of "design" issue raises doubts about how well you've thought this product through. Social/place-rating apps are hard, given the dominance of the big players in this space. This gender thing complicates things but is by far one of the easier things you'll have to deal with, and it doesn't appear you're dealing with it well.
That sounds harsh, but better to take a hard look at this now than at launch date.
There are also plenty of people who are interested in people of two or more genders that you shouldn't erase. This is the kind of thing where, if you really can't figure out how to make it work with your current design, you seriously need to go back to the drawing board.