[wildtomato]

If this is essentially a hashcash, what prevents them from swapping that out for a cryptominer after getting an established user base (if they aren’t already mining)?

[wutbrodo]

Why would preventing this matter?

[Kiro]

Why would users care? They will waste the same amount of electricity. In fact, I would argue it's better than solving a pointless equation.

[hombre_fatal]

Finding a profitable cryptominer in the first place.

For example, CoinHive shut down.