MediaWiki captchas are terrible and literally worse than useless (keep many humans out, fail to keep spambots out). reCaptcha is a little less worse. But if they have something that works for wiki spam, please be sure to post it to mediawiki-l! Thank you :-)
Protecting one specific Wiki from spam and protecting Wiki’s in general from spam are two different problems. Spam security by obscurity works for a single Wiki.
MediaWiki captchas are terrible and literally worse than useless (keep many humans out, fail to keep spambots out). reCaptcha is a little less worse. But if they have something that works for wiki spam, please be sure to post it to mediawiki-l! Thank you :-)
Protecting one specific Wiki from spam and protecting Wiki’s in general from spam are two different problems. Spam security by obscurity works for a single Wiki.