FYI, I've filed the following ticket with ASF Infrastructure to see if we can get a CAPTCHA set up on our wiki: https://issues.apache.org/jira/browse/INFRA-3670
In the meantime, we've been doing a decent job of policing, let's keep it up <https://issues.apache.org/jira/browse/INFRA-3670>-Todd -- Todd Lipcon Software Engineer, Cloudera
