[GeckoEidechse]

I wonder if a general solution could be to make the visit more computationally demanding to the visitor than to the host, e.g. some form of proof-of-work. I guess captchas already do that in some sense but they require the humans to do the work.

Now the author above has stated they dislike the crypto route and I agree that the whole web3 idea is bs but what if in the case that spam of some form is detected by the server, it requires the visitor to show some proof-of-work and combine that with the "mining crypto in JS instead of ads" craze. That way the bot would need to put work in which would slow it down and at the same time it would pay for its own visit.

No ofc no spam detection system is perfect and it would also hit human users but in their case it would be just a wait a few more seconds longer for page to load kinda case.

[Bloating]

post this above, but there is a pre-bitcoin whitepaper suggesting just this approach to solving email spam