[Lerc]

So is using sed to play chess. This exists as a proof on concept not as a suggestion that it is a practical solution.

Since you chose to post this request here and not on the thread about playing chess with sed, I suspect you are imagining some form of real world effect from the energy expenditure from people doing this. I think that lacks a sense of perspective, a better approach would be to consider the change in state of the world after an extended period of expected use of the approach. Considering the considerable lack of practicality of calculating in Bitcoin (and indeed playing chess in SED) the expected use is negligible and consequently the impact would also be negligible.