[Mediawiki-l] Clean up users?

[Platonides]

Helmut Hullen wrote:
> Hallo, Platonides,
>
> Du meintest am 27.07.11:
>
>>> But since some weeks there's a robot which first gets an account
>
>> Are they passing the captcha to create the account?
>
> Seems so. I've just looked into the source code of the page: it's simple
> to find the captcha question and to calculate the answer.
>
> Maybe I have to choose between several spammer blockers which all are
> nasty for the good guys.

 From the url you provided, I see you are using the math captcha. That 
is very simple. You should switch to FancyCaptcha.