@fryorcraken.eth
"Instead of imposing costs and rules and validations at a few centralized gatekeeper points to stop spam. Instead, you push it out to the edges. You impose costs on everyone who is actually using the protocol to spend their CPU. And you know, the world of email would probably look very different today if the protocol had adopted Hashcash back in the 90s." says @lopp
in https://press.logos.co/podcasts/logos-state/jameson-lopp-technology-to-empower-individuals
This approach resonates with what @waku aims to achieve.
A simpler design could be a p2p network of cloud nodes, with browser and mobile clients accessing the network via REST APIs. However, this wouldn't work for a private, censorship-resistant system, as seen in the past [1][2].