[luckylion]

The results of the PoW are just thrown away, right? I wonder if you could couple that with something useful, e.g. what SETI@home used to do, but the intentionally small size of the work probably makes it difficult to be useful.

[realaravinth]

I'd love to do something useful with the PoW result but like you say, the PoW should be able to work in browsers, so they are intentionally small.

The maximum advisable delay is ~10s but even then it might not be enough for it to be useful.