Earlier quoted context omitted.
> hide sites by domain This gives me the idea to build a search engine that only contains content from domains that have been vouched for. Basically, you'd have an upvote/downvote system for the domains, perhaps with some walls to make sure only trusted users can upvote/downvote. It seems like in practice, many people do this anyway. This could be the best of both worlds between directories and search engines.
You don't need an upvote/downvote. If someone searches for X and clicks on results you just record when they stop trying sites or new search terms as you can assume the query has been answered. Reward that site. Most of them are already doing this in some form.
And new clone sites launch all the time, so I’m always clicking on search results to new clone sites that I’ve never seen before so can’t avoid them in results.