Joseph,
The idea is that miners should show proof that they burned some coins -that is, sent them to a verifiably unspendable address. This is expensive from the miners’ individual point of view, just like proof of work; but it consumes no resources other than the burned underlying asset. To date, all proof of burn cryptocurrencieswork by burning proof-of-work-mined cryptocurrencies, so the ultimate source of scarcity remains the proof-of-work-mined "fuel”. More details here:-
https://en.bitcoin.it/wiki/Proof_of_burnThat's why I'm keen to understand (technically) how an account is created as dead... completely unaccessible...
cheers
Justin