The algorithm is stubborn (or stupid) but eventually complied with my hundreds of requests to "show less like this" and I no longer get inundated with endless and mostly repetitive attempts at pushing Bitcoin and its variations.

Prior to that, it was bombarding my feed with links to books on Amazon, which required blocking of hundreds of authors to fix, eventually. I always thought an algorithm was suppose to learn from our preferences, not push us around where it wants us to go.