And we know numbers are inflated because, and I'm sure this applies to most of us, I personally know many people who have made multiple Facebook (or insert other platform) accounts for various reasons. Sometimes because they aren't tech savvy and couldn't figure out how to reset their password.
Discussion
I actually found that Facebook was very helpful when I forgot my password after being away from it for a few years. They simply deleted my account and refused to let me make a new one. It's always nice to have someone to support you and keep you honest when you are thinking about backsliding.