Looks cool and useful, but I'd never want a 3rd party to have that dataset. Could care less about privacy policies. (They're meaningless.) On a different level

Looks cool and useful, but I'd never want a 3rd party to have that dataset. Could care less about privacy policies. (They're meaningless.) On a different level, it's very much not clear from the site itself what hardware you need to have to get all the various metrics it's displaying.