I'll second that creating a wiki to replace it probably isn't a good idea. The first one tried cleaning it up, but without something clear-cut like only covering persons with a criminal record, a topic like this is prone to being overrun with negative opinions. And that's where legal troubles can come in.
The old wiki and the new one are hosted by Fandom. Even though individual people are creating and updating the information, ultimately, Fandom can be held responsible for material that's considered defamation and libel because it's being published on their servers and made available through their servers. It's not like an ISP such as America Online where information is accessed through them. It's provided by Fandom. A simpler distinction would be if someone drives to commit a crime, the company or organization that built the road isn't responsible for it. But if the road is built for the purpose of committing a crime, the builders are responsible.
If the second wiki is going to have any chance of sticking around, it's something that will have to be governed very carefully. You'd have to come up with a set of rules even more narrowly-defined than the first wiki had and very likely every edit would have to be reviewed to make sure it adhered to the rules.
That's going to be tough. Just look at what it takes here to get people to agree on what constitutes being "Pure Evil" and compare that to the general idea of trying to figure out what kind of an antagonist characters are. And then making sure what's said about people from the real world doesn't drift into defamation and libel?
Good luck.
