Piefed just reminds me too much of sublinks where people simply hated the devs so instead of helping improve the software or even fork it just started fresh on something new.

None of the Piefed users ever said Piefed was perfect, that the code was elegant, or that there were no issues with filters such as the the three examples I listed above.

I'd argue poor code will cause issues as users increase, both for instance admins and user performance.

Overall the issues brought up keep coming back to piefed bringing in some of the worst parts of reddit to the fediverse, like the reputation system. It's designed how rimu wants people to interact in specific ways. And does not seem to care if it actually works with other non piefed instances.