I totally respect your reasons for not wanting kudos/likes/hearts type thing, but here's my use case: A LOT of days now I can't type at all (not today, clearly) and it would give me a way to interact that's sufficiently low energy to actually be feasible where otherwise I'm reduced to being a ghost who just reads posts.

I realise this is totally an edge case and doesn't align with the way most folks would use it, but it is at least a thing.