Fun fact: the indies that got hit hard by Steam's algorithm change (many of whom have kickass games that were doing well before) are now having the worst Steam sale they've ever seen. So yep, that's permanent. Not a thing they can climb out of with a really good sale. Hooray.
I think there should be a way to mute certain game types? that's what they said (time ago). If you mute anime or maybe the adult content filter, you shouldn't see them anymore?