And a reason for that is the utter absurdity in regards to account deletion. You have to do fairly standard things like identify email, password and some contacts.... but you also have to know the EXACT month and year of which you signed up. And unless you got lucky and didn't delete your sign up email up there is no possible way to find out. When I first signed up, I had a ridiculous name like everyone else did back in the day, and I wanted to just move on. Not very serious, I know, but this issue can be for many circumstances.
I really wish that some legislation would be passed for a "Nuke" button standard on all digital platforms that allows you or a designed individual to erase profiles at will.