Yes. You don't need to enter a surname or physical address while signing up. So no one knows who you are or where you live. What's more, your email address is only used to send you notifications, As such, it's not visible to others. You sign up only with a name. And this can be your first name, but most people use a username. You have conversations using the internal chat feature. If you arrange a real sports meeting, which is the point, then agree to meet in a public place where others are present.