As part of the devs farewell message on their site, they have included malicious code to make each visitor sends 2,000 requests to the dbzer0 servers in an attempt to DDOS and take the instance offline.
I am sorry, but I disagree with the "centralised blocklists" in a:
Decentralized social networking platforms... Source
You should be able to block and unblock freely whoever and whatever you want.
The "centralized" may be suggestions (i.e., toggleable), and only, where instances with opt-in keep them implicit/optional, and instances with opt-out explicitly warn about them during a registration.
