> To avoid the Ombudsman being overused, you could give it a price of say $20, which is always refunded when the case is resolved.

HN actually acts somewhat like a crowd-sourced ombudsman. People who have an issue write a description and post it to HN. If enough people find it compelling, it makes the front page. Once it makes the front page, someone in authority at the involved tech company will see it, and try their best to resolve it.