Way back in 2008, Google had a feature called SearchWiki that let you X-out or upvote search results. It was little used, but apparently the most frequent usage was to delete ExpertsExchange results. IIRC we ended up making some changes to webspam that resulted in ExpertsExchange links falling off the front page, and then SearchWiki was unlaunched because it was no longer necessary.
What's your beef with W3schools? IMO the code examples work, and the explanations are relatively short and to the point. MDN is harder to read for new learners as everything is documented like an API.
Probably a ten-year-old beef. W3Schools used to spam search results with questionable-at-best information. I forget whether they got bought, or just cleaned up their act, but the current version is vastly improved over what it was. Still, I have muscle memory that hesitates to click one of their links despite knowing that W3Schools sucks much, much less than they used to.
Yes, I want to remove quora from my results. I vaguely remember you could block websites forever in google a long time ago, but I may be misremembering it.
W3Schools is also nice because, though MDN are more comprehensive and have a higher quality appearance, their examples are more on point and they've a playground functionality where you can test any of them on an online editor with a complete code rather than just change the property on a limited demo.
Depends. We have trained ourselves to be blind to garish pictures top and bottom, or over to the side... But when the top item in the search results column proper is distinguished from the others only by a laconic "sponsored result" label below it, is that perceived as what we usually call "an ad"? I'd say it's pretty reasonable to call that "pay for placement".