I've encountered a lot of people who are not who they project themselves to be, but not when it comes to gender, i'm supposing that's probably because i'm gay? There are a lot of spammers on gay and dating sites it seems (like OKcupid), but they are pretty easy to spot, seems they all use the same template. But those are usually people trying to sell something or phishing, so it can be pretty obvious once you get it.
As others have alluded, it seems the height of sadness to me that someone would feel the need to lie or pretend on a site like zity. If one cannot be their true self here, then my guess is they just haven't grasped the freedoms that this kind of community afford. Sort of like the Island of Misfit Toys (no negative implied), we can likely find acceptance because we all share the common thread/s of being kinky.
Growing up in an era and culture where being gay was considered "sin, sick, etc.," put me on a path of hiding for much of my life. i tried being open, standing up in my church at age 19 to "confess" that i am attracted to guys. No one knew what that meant, we just thought it could be prayed away. It was really scary for me to open up and it was immediately evident to me that no one really got what it meant, including my future wife who was present at that meeting. Realizing that no one got it, and who i am was not acceptable sent me into hiding.
Back then i bought into the notion that i could change, so any honesty had a lot of guilt and shame associated with it. i married young (20) and naively assumed my wife would be my ally in my fight to change from gay to straight. When i again brought up the topic to her about being attracted to guys, it devastated her. i found out many years later she had gone to our pastor and considered getting an annulment, but the two of them discussed me and concluded i was just confused. Still, my naivety and her response to me sent me deep into hiding.
It's a long story, but my point is i lived a huge chunk of my life in hiding, i'm sure there are many who can relate here. i paid a huge price to live as the person i am. i lost literally everything, friends, family, a sizable fortune that i worked hard to build. As a result, i highly value honesty and the ability and opportunity to be who i am with others. i don't wear my heart on my sleeve, but i no longer try to live as someone i am not and i truly pity anyone who does try to do that.
i feel real life is amazing and so worth it and to pretend is a waste of something very precious.