I think better algorithms wouldn’t be a waste of developer resources. At the end of the day, the post feed algorithm is the core product, IMO.
Figuring out how to lower the weights on highly active subs is a good idea. As is ranking smaller subs’ content appropriately.
For all it’s faults, Reddit’s algorithm was pretty good. There was always a decent mix of small and large subs on my feed.
Kbin’s post ranking overall seems better than Lemmy’s and that was a major factor in me choosing it as my home base.
It’s a remake that uses new, higher quality assets though, so isn’t an option in this case.