"Lists + hashtags" form a simple yet powerful tool for creating "topic-based" feeds. Check this out:

Eg For painting notes, create a list of well-known artists and assign a specific hashtag for 'painting posts'.

Artists can then use this designated hashtag exclusively for their painting-related content which will appear in the topic feed section. Users can add and remove artists from the list.

You can do this with any topic. This method enables topic-based feeds without any spam, granting users complete control. It's precisely what we need.