[sn_master]

I just need search engines to have an option to "block" certain sites from my results for all future search queries. Getting rid of Quora would be a good start.

[bunnyfoofoo]

One of the main features of Kagi.

[nullc]

Google briefly had the functionality (perhaps only as an A/B experiment).

Given the recent revelations wrt the chrome search bar, I'm guessing that they found making their search work better for people lowered their income.

[22289d]

There are Chrome Extensions that do this. Search this site and I'm sure people have recommended good ones.

A common use case is blocking w3schools.