As you can see in the lending section, if you even make a post somewhat close to calling yourself a female, it's a insta-loan deny. This is going a bit off-topic, but in many online communities, females often get on the trash-talk side, most often in Gaming.
And to be dead honest, some people on this forum are obviously sexists.
They get insta-deny because most people that claim to be female are not. They go out of their way to make it known that they're "female", but can you tell me how this makes a difference in getting a loan or selling an item? There's no reason why anyone should bring up their gender when it's not relevant to transactions or forum discussion.