Hello Reed Londen,
The best thing to do here would be to install a captcha on your wiki, or get all of the wikis that are being vandalized to. You do not want a vandal bot to begin to move pages to random names after clearing their content to random characters, because then all you can really look at doing is loading a database backup.
A captcha will protect against all of this, because there are tools available (in maintenance) which will revert all edits of a particular user, so if the bot requires one valid login most of these tricky vandalism tactics will fail.
Requiring an email is almost as effective, but you must take into consideration that it is still possible for the vandal bot to destroy your site if the vandal does not care about identity (the FBI will do nothing in the US if there is not a huge amount of money or revenue lost, and they will especially not do anything if it is for a non-profit wiki). They could easily set up a MAILER-DAEMON for Postfix or Exim or whatnot and an MX record pointing to that on a cheap domain, and then you can be compromised just as easily.
I hope that this helps, Kasimir
On 4/11/07, Platonides Platonides@gmail.com wrote:
If they create accounts to vandalize, mark as minor, etc. it's likely MediaWiki specific. "HTML that was encoded be decoded, blank lines deleted" don't really know what you mean, but can be part in their processing (eg. changing entities by their decoded). If Content removing then revert. Can you point at some vandalizing examples?
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