I actually use some combination of Tampermonkey and uBlock to filter out Facebook ads (I forget which finally did it, since they work hard to make those things

I actually use some combination of Tampermonkey and uBlock to filter out Facebook ads (I forget which finally did it, since they work hard to make those things tricky to block). Haven't thought about using it to filter out offensive posts, but that's because I just unfollow people if they pass a completely subjective tolerance barrier. By virtue of delivering content to your browser, Facebook has put the power in your hands. It's how you use your browser that determines what you see. ;)