Or in the simplest terms possible, the best 'private' service or site is the one that doesn't store any personal information for its users. If you're running a site like Ashley Madison, then don't store real names and information. Same with if you're running an anonymous message service, an anonymous emai service, etc.
That's not some shocking new thing. Forums and other such sites have been letting people sign up with no more than an email address and password for years. And the payment stuff on these sites and services could easily go through PayPal or some other third party provider (who's likely got a much more secure system setup than you).
But no, a lot of sites and companies and services seem to be all 'let's store everything about everyone, and then wonder why it causes a meltdown when the site gets hacked and said data leaked all over the internet'.
That's not some shocking new thing. Forums and other such sites have been letting people sign up with no more than an email address and password for years. And the payment stuff on these sites and services could easily go through PayPal or some other third party provider (who's likely got a much more secure system setup than you).
But no, a lot of sites and companies and services seem to be all 'let's store everything about everyone, and then wonder why it causes a meltdown when the site gets hacked and said data leaked all over the internet'.