List of blocked words in community names:

shit
piss
fuck
cunt
cocksucker
motherfucker
tits
memes
piracy
196
greentext
usauthoritarianism
enoughmuskspam
political_weirdos
4chan

Seems like one of the PieFed devs has some opinions about the kind of content they dislike, and are unilaterally forcing that on every PieFed instance. I can somewhat understand filtering out curse words, but specific communities should not blocked by default, and definitely not hidden in a hardcoded list in the source code.

Edit: Important context here: https://lemmy.world/comment/21323475 Seems this blocklist is more limited in scope; it’s not blocking federation entirely, just blocking (from what I can tell) their appearance in search and automatically federating with them when adding an instance. Still problematic to exclude specific communities in a non-configurable way with little justification IMO.