Most people (including myself) would like to agree with you on building some sort of system to create credibility or honesty or reliability among people on a social media platform. I think the majority of people that use any social media (including Lemmy) would probably agree and more than likely would participate in it.

Unfortunately, it only takes a small group of people to upset the system, game the system, play with the system or create situations or systems of their own to manipulate everything ... either to fight against others, or to generate some sort of power or control of their own. All it would take is this small group to completely change everything and make everything difficult and non functional.

It's a lot like the democratic system of government. When you think about it the majority of everyone would like to participate in it and make it work ... unfortunately, its only a small group of powerful individuals who have gamed the system to give themselves and their friends power over everyone else.