It would be impractical to stablish an inflation rate based on an unknown number of inaccessible wallets; one solution would be for users to set a trusted recover account, to where the funds will be sent after 'x' time of it being inactive.

The stupid solution to that is the argument you can go 10 digits behind the comma but at that point, what's the real currency? Bitcoin or satoshis?

It's all Bitcoin, divisibility is one of the requirements for good money. The thing is that it doesn't need to be the currency, but the monetary base in which the whole ecosystem is baked to.

The thing that seems to be broken is the way Steem is created/distributed, we can't expect growth from inflation/printing, it's never worked in our history since ancient empires.