This is something I kinda wish was a more common feature: a robust tagging system. That way you could just opt in/out of the tags you don’t want to see. Reddit kinda sorta had a partial solution, but it always seemed tacked-on.

Of course, there are a lot of difficulties to make a good tagging system, and it requires either centralisation or coordination. The former goes against lemmy’s decentralised philosophy, and the latter requires a lot of extra moderation/admin work.