Further to the post above, AB's new owner has requested feedback about the site. Here is mine.
1. Decide what you want this site to be.
2. Write three sets of guidelines. These are applicable to users, moderators and employees/super-users respectively. All are posted publicly and prominently on the site. New user sign-ups are directed to the guidelines and have to acknowledge those guidelines and agree to adhere before they are permitted to contribute in any way.
Similarly when new moderators are appointed, they must also agree to the moderator-level guidelines. Those different guidelines must reflect what you want the site to be, and they should also specifically outlaw what you see as negative behaviours, as well as include catch-all clauses to discourage much of the anti-social behaviour AB sees almost every weekend, as wine-o'clock approaches.
Finally, the list of moderators should be public. It adds transparency and credibility, as well as providing new users with a resource for any questions they might have.
A crowd-sourced FAQ would be a big help as well.
3. Recruit a set of moderators who will be firm, but fair. They must enforce those guidelines aggressively but above all, fairly. To encourage fairness, possibly the system might conceal usernames of any post that is subject to potential deletion/moderator action.
Initially, this will be difficult, but it has to be done to return to a more respectful and credible site. Moderators can be (unpaid) volunteers, but they will have to report to one or more super-users – possibly paid employee(s) – who have the final say. The super-users will have powers to easily reverse decisions by rogue moderators. Initially, this is likely to be the most challenging and time-consuming part of the whole re-building process. You might want to reach out to some of the better users from the past to support the moderation process.
4. Any user who transgresses "too often" (whatever you decide that level is) is banned. That becomes an automatic process once they have accumulated a certain number of transgressions. For each username, that is permanent, but the user's other content remains visible on the site, except where it breaks the new rules for contributions.
Some might want each user's 'transgression count' to be public, so that new users can see who are the 'kind' users and who is less trustworthy.
5. Banned users may return under new usernames, but see rule 4. There is a case for some particularly damaging individuals to be banned permanently, but that's not currently possible if someone is determined to cover their tracks.
6. Encourage moderators and other users who are aligned to your vision, to post sensible questions and respond with credible and helpful responses. Ensure that off-topic contributions are deleted or moved to a different thread (That has to be included in the guidelines).
7. There is no point in advertising, or publicising the site until it has been restructured to suit your vision. However, most AB users also use other social media sites. If users choose not to contribute financially, maybe they can be persuaded to publicise the re-vamped site on other social media outlets
Just as an aside, there is clearly a place for the original idea of Answerbank. Yahoo Answers met that need for a while, but was forced to close. Quora is going the same way, following an abortive attempt to monetise it.
There is a need, but it appears very difficult to deliver the intent, without being polluted by trolls, conspiracy theorists, racists and downright lies.
Hope it helps - Rationalist