Depending on who would be providing URIs. If the miner, they would be able to deliver any crap so content deliveries would have to be judged in some way and aw

Depending on who would be providing URIs. If the miner, they would be able to deliver any crap so content deliveries would have to be judged in some way and awarded differently. If the pool provides addresses to crawl, the miner could be given crafted/dedicated URIs from time to time and lack of delivery of Proof Of Crawl could result in a penalty chosen in a way rendering "cheating" unprofitable. But then fresh URIs have to come from somewhere.