So sign up 100 times?
That shit happens everywhere and all the time even in centralized platforms. I used to have 3 Facebook personal accounts but now deleted the other two.
You can create as many Facebook Pages and Community Groups you want! Currently have 2 for my own and other two for client!
Used to have more than 5 email addresses but now retain at least 4.
Again, identity verification is not the solution and is not the ideal approach in a world wherever privacy is at the heart of it.