Stack Overflow is no more just a simple ask/answer website. For me as a consultant and manager in industry, when I want to hire an engineer, watching the profile and the score of that engineer is a valid and reliable enough proof. Therefore it would be beneficial if, when somebody accidently loses their account, if they already had proven their identity, to make it possible for them to revive their account by re-proving their identity. Then they can trust and involve themselves more in Stack Overflow. That will be good for engineers, managers and industry, and definitely Stack Overflow.
I think that it's a good idea for programmers with a higher score than a specific range to be able to have "blue ticks", especially because gathering score in Stack Overflow is long-term work.