I started talking about this kind of blocklist / bouncer list being made available to individuals in 2018 (https://news.ycombinator.com/item?id=17849513
more about users having access to controllable filters in 2019 - https://news.ycombinator.com/item?id=18816191
things in 2020 made it more obvious the need for such things was coming ( https://news.ycombinator.com/item?id=22521270
Will be glad to see these evolve and become more fine tuned as more people get involved.