2. Sign up...
3. As a freelancer...
4. Google account?!
5. Go back. Is there no other option?
6. Seems not. Fuck you. I'd much rather create an account than give you my gmail address, have you use my fake name that I set on my google account, and have a single point of failure for authentication availability and security. That is assuming you only request read access.
Not the OP, but don't take it personally. When someone's building a side project, there are so many things to do, and making using of an existing authentication system is fairly reasonable in the interests of time and effort vs value.
Of course, you have a right to your privacy, but you don't need to be so rude.
There had been the option to sign up with twitter too, but I dropped everything but Google because that gave everything I needed very simply (dates, avatar, email), in a single step.
Part of the problem I felt was consolidating different auth mechanisms into a single account - which I decided not to deal with by leaving out.
What the hell is the matter with you?