It's an interesting idea. I did thinking it looked pretty scammy (felt like a crypto miner), but...

It does feels different in that it doesn't use any user's bandwidth if the site doesn't monetize it and it mandates a UI with an opt-off button if the site does monetize it and uses the user's bandwidth.

But I'm not sure if this is ever gonna work... will a nearby user device really give the content that I need than a datacenter...? There's no mention on the FAQ page how it prevents from a fake user sending malicious scripts across the network as well.