You’re right, this is not a morality-specific phenomenon. I think there’s a general formulation of this that just has to do with signaling, though I haven’t fully worked out the idea yet.
For example, if in a given interaction it’s important for your interlocutor to believe that you’re a human and not a bot, and you have something to lose if they are skeptical of your humanity, then there’s lots of negative externalities that come from the Internet being filled with indistinguishable-from-human chatbots, irrespective its morality.
Proposal: if you’re a social media or other content based platform, add a long-press to the “share” button which allows you to choose between “hate share” and “love share”.
Therefore:
* quick tap: keep the current functionality, you get to send the link wherever / copy to clipboard
* long press and swipe to either hate or love share: you still get to send the link (optionally, the URL has some argument indicating it’s a hate / love share, if the link is a redirect through the social media platform)
This would allow users to separate out between things that are worth sharing but that they hate / love and want to see less / more of, and it might defang the currently powerful strategy (with massive negative social externalities) of generating outrage content just to get more shares.
Social media companies can, in turn, then use this to dial back the viraility of hate share vs love share content, if they choose to do so.