Piefed.ca shows All posts by default, to anyone including guests without an account, whereas Lemmy.ca's default was to show only Local - the latter was a huge blocker, so that having changed now on their piefed instance makes all the difference?
I could see promoting lemmy.zip with a warning, similar to how you sometimes used to do with lemm.ee iirc, citing how it did not make moderation choices for the user unlike Reddit. But for a mainstream normie I would avoid it, or again at least put in a word of caution to explain.