I'd be glad to pay a penny (or a fraction of it) for each comment on HN or whatever and have it fund the network (server hosting, staff, etc). Much better than the current alternative.
Really? You'd prefer to pay for every single interaction on the web rather than be served an ad that you can block by the way anytime?
What about people that don't have the luxury to throw away their money like that, should the internet exclude poor people from participating?
This comment I am making is not worth $.000000001 USD, it is worth exactly zero in whatever currency you want to denominate it in. $0 BTCH, $0 ETH, even $0 Zimbabwean Dollars. Take your pick.
It might even be worth a negative amount of currency since it is a mostly pointless comment and anyone who reads this has kind of had their time wasted. That is practically most of what is online IMO and why micro payments are an idea that have not and never will take off.
Of course that expenditure has to be reasonable, ideally $1/day for intensive use or something affordable by everyone or trivially subsidizable, either externally or by participating in the network.
Costs ballooning out of proportion would be a problem of course, but the decentralized nature allows developers and users to move to another data provider once it proves it costs too much to operate (as it happened with Ethereum).