The fact that decision was democratic is independent from whether it is good and reasonable.
Anti-homosexuality laws were also voted on democratically.
Not platforming your slop is the same as killing minorities? Okay...
Codeberg is not a state. This is not life and death. If you have any disagreements, feel free to join another community. The network effect hadn't kicked in yet, you're free to compete in the marketplace of ideas.
It's safe to say it's reasonable to majority of codeberg members. It doesn't really matter if it seems unreasonable from the outside.