Lemmy, whose devs are arguably questionable with worrysome personal politics and philosophy but who do not bake said philosophy into their software.
But as OpenStars pointed out, the Lemmy devs did just such a thing in a much more egregious (hard-coded) way previously. The slur filter is now optional after considerable time and outcry.
Piefed's vote restriction is an option that admins of any instance can fiddle with, or, effectively, disable entirely. Like the slur filter currently in Lemmy, and thus less forced than the slur filter as it was initially rolled out on Lemmy. The issue, for me, is that I made a home on Piefed.social, specifically, and now it's... not home for me.
If you don't care about what admins do on their own instance, this shouldn't bother you. I care - both in the abstract and insofar as it affects me, and so am... winding down my participation.