I thought I scrubbed things by hitting "I am not interested in Elon Musk". Prompted by your tweet I checked what it says, and the offending post on my timeline

I thought I scrubbed things by hitting "I am not interested in Elon Musk". Prompted by your tweet I checked what it says, and the offending post on my timeline has an option "I am not interested in Business People". So that's probably how it got through. I still stand by my grossly hyperbolic diatribe about how twitter is definitely getting shittier, though.