I would disclose that if I was only because I'd rather be myself. You'll get members who like that cus a lot of people want what they can't have, and others need the fantasy of a single girl that may want them later on. Stick to what you're comfortable with and the rest will follow.
But no, I'm not in a relationship and I rarely date. But it's so cool that so many camgirls are in relationships because you get that occasional person telling you "you'll never get a husband if you keep doing this because he won't like you showing all his goods, in the past or present" etc.
I assume many members are in relationships just like most other people visiting strip clubs and the like are. I also assume members who have to rush off line, are on Skype with me in their bathroom whispering etc., are in relationships too lol. Some admit that they are.
Most people though, members or camgirls, and everyone else, are attached in some sort of way. Even if it's just a FWB or they hook up with people occasionally. Even some camgirls have members they talk to all the time and it's not even about the money, they genuinely like them. It's human nature.