Today I found out that a wiki I like (but I don't edit) had started being spammed, from its WikiApiary page: the exponential growth of registered users, but not of active users, was suspect; a look to RecentChanges immediately confirmed that a couple days ago (one) captcha on signup was probably won by the spambots. For those who do MediaWiki consultancy or would like to start, I think there is an opportunity. Few wiki sysadmins go ask help, but putting together some select metrics you could create a page on WikiApiary reporting the wikis whose parameters recently got unhealthy: then go offer an audit and improvement of their antispam setup, before it gets so spammed as to require disinfestation (cleanup) services. Just an idea I throw to get it out my mind, ;-) Nemo