In the profiles, there's a choice to seek Transgender Men and Transgender Women. From my understanding, the first is female-to-male men and the latter (Transgender Women) is male-to-female women). But, searching in either one, I only see male-to-female/women - are there no Transmen on this page? Does the distinction in profile not mean anything?

You're right on the terms, and I think trans men aren't present as much because most of the users here are straight, so it makes sense more trans women would be here since they're wanted. I also just think its a bigger problem of general transphobia and not seeing trans men as real men that keeps them from either being active or people being attracted to them.