I like the idea of a time-delayed boost. Basically just throwing up the note in the air again until it settles on the floor of someone elses feed in the future.

Perfectly fine to think your post is a banger and share it again, even if you're not adding anything. My biggest gripe however is that boosts incentivize spammy behavior are are kind of redundant as they are now. If i've seen it, chances are some of my other followers have just seen it.