rants.craveiro.pt has blocked the following instances:

wagesofsinisdeath.com with unspecified reason
baraag.net for "NSFW Anime style images that appear to be of child-like characters."
childpawn.shop for "Child porn and/or loli content"
chudbuds.lol for "Unrestricted racism/antisemitism"
crypto-group-buy.com for "Spam instance"
detroitriotcity.com with unspecified reason
develop.gab.com with unspecified reason
fedi.syspxl.xyz with unspecified reason
freefedifollowers.ga with unspecified reason
freespeechextremist.com for "Hate Speech"
gab.ai with unspecified reason
gab.com with unspecified reason
gabfed.com with unspecified reason
gs.smuglo.li with unspecified reason
kiwifarms.cc with unspecified reason
liberdon.com with unspecified reason
mstdn.foxfam.club for "Spam bots and a lot of alt-right posting."
nazi.social for "Nazis"
nicecrew.digital for "Overt Racism"
(the list has been truncated to the first 20 entries)