[Mediawiki-l] Decreasing vandalism

[Rob Church]

On 29/03/07, Ian Smith <ismith at good.com> wrote:
> I think this currently works for edits, not user creation.

The default is to trigger on edits which add new external links (i.e.
possible spam) to pages, but it can be configured to trigger on, e.g.
all anonymous edits. It can also be triggered on account creation if
desired.

The default ConfirmEdit contains a weak text-based math implementation
which is not a particularly foolproof captcha. There's also
FancyCaptcha, which requires manual generation of captcha images using
a "secret" and a word list, and is the best solution. In between those
two is MathCaptcha, which uses the math renderer (texvc) to generate
simple sums and render them as images...this one's better than the
default, but still not as good as FancyCaptcha.


Rob Church