Adding to the Nazi comment - substack is basically a long form blog format, very similar (AFAICT) to Medium.
Comment on Substack Competitor Ghost Announces ActivityPub Integration
variants@possumpat.io 6 months ago
Awesome, I’m not sure what substacks is but ghost is pretty cool and I like to federate
jlow@beehaw.org 6 months ago
Substack is just another platform where the nazis run wild thanks to capitalism or misguided ideas of what free speech is supposed to mean.