I like these categories but what if you don't know what kind of content the person you are about to follow posts? Maybe you just follow them based on a single note or because they started following you. Maybe they have an interesting name or you want to include them into your feed for some other arbitrary reason.

Wouldn't it be simpler to have a rating system based on your engagement with people over time? The people whose notes you have liked, commented, and zapped more are prioritised in your feed. There could also be a "I want to see less of this" button. Not for public downvoting but for private feed curation purposes only.