[darklajid]

You cannot. You can only use the facts that the original account creator provided (mail address? postal address?) and nothing else.

You never had a government id to begin with. Maybe my government id doesn't match my account name (I know.. I violated the rules in that case.. Oh I am sooo bad). Maybe there are people with similar/the same name.

How would you make sure that 'government id' presenting person A is really the person that created any specific account?

If you cannot recover the account with the means you were provided during registration/normal usage, bad luck. Government ids won't help here. Ignoring the problems of 'faking' those (how can you judge that these documents are valid if you just get a crappy picture/a xerox or whatever, in lots of languages?) to do more harm than good.

[DominikR]

I agree with you, in some cases the account would be absolutely unrecoverable and I am sure this happened to some users.

Still, in some cases it could be a quick solution to unlock an account. (account name matches id, no telephone number available, email validation unsafe for some reason)