Twitter shows me garbage I don't like, as does YouTube. They do this with very little regard for who you follow nowadays and give you no say in what types of stuff you actually want to be recommended. Sometimes they're nice enough to say why they recommend something (which should be standard), but most of the time it's just infuriatingly stupid.

I'm not against machine curation at all, mind you. I want the infrequent poster to have a higher weighed voice and such. But I want to be able to control the parameters.