Ethereum

The idea of paying for compute on demand is very alien to most people. A subscription service to pay for gas fees would be more appealing to most people I think.

my guess is it's hard to average this out. better to offer subscriptions for certain activities (e.g. minting nfts, sending payments, etc)

The only problem is externality pricing.

Building https://negationgame.com

I'm saying it will be a hard product to price because there will be such variance in usage. Partitioning by usage type would likely reduce the variance in each category and permit easier pricing

Isn't it all just paying for blockspace? I don't see a reason to separate types of transactions. I'm imagining different tiers for amount of blockspace per month.