They were swapped before, and were recently changed to this for Lemmy compatibility, but things like the algorithm and reputation counting haven't been updated yet.
I think boosts have potential to be used for crossposts, and the current implementation are just crossposts to your profile. Though they're likely here right now just because Kbin is a mix between thread and microblog software
Profits don't matter under capitalism, it's only stock money. Trying to profit is a death sentence in the tech space, as we're all seeing right now. This system doesn't work for the 21st century
I really like how Kbin opens links as a little web app. That's such a killer feature for a link aggregator, would be a valid reason to switch away from Reddit in and of itself