under-bank.blue has blocked the following instances:

9kb.me for "スパム増殖のため"
activitypub-troll.cf with unspecified reason
airwaves.social for "スパム増殖のため"
another-guild.com with unspecified reason
archaeology.social for "スパム増殖のため"
besties.com for "スパム増殖のため"
bondsdogs.com for "スパム増殖のため"
cmm.fyi for "スパム増殖のため"
cryptodon.lol for "スパム増殖のため"
cunnyborea.top for "スパム増殖のため"
cuyes.mooo.com for "スパム増殖のため"
digitaldata.social for "スパム増殖のため"
discourse.helenprejean.org for "スパム増殖のため"
don.neet.co.jp for "スパム増殖のため"
edusocial.it for "スパム増殖のため"
forestver.se for "スパム増殖のため"
guitar.rodeo for "スパム増殖のため"
kernkraft.social for "スパム増殖のため"
kokuusa.club for "スパム増殖のため"
(the list has been truncated to the first 20 entries)