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 saw a vaguely similar situation a long time ago where someone was a positive, contributing member of the community and then they fell from grace somehow and basically no one was thankful enough so they were banned and they just kept evading the bans and posting smut in the forums for weeks.
The way this guy has really thrown his weight into this but still obviously feels like the victim is really reminiscent, I wouldn't be surprised if there's some more to come.