Of course not. Are all your Facebook "friends" your friends? We accept acquaintances, distant relatives or even people you don't like very much. They don't even have to be people you know, but they have to be freelancers. You can invite the person you share a table with at the coworking space that always complains about the freelance paperwork, you'll be a life saver!
We're here to help you make your freelance experience more bearable, not to judge you on who you invite and who you don't invite.