I've read lame in multiple places, incl.
http://www.behindthename.com/name/claudius and you're right about wiki not really being reliable.
I think it's very important to consider what meaning one's putting upon one's child re: names, regardless of fame or popularity of a name... In many cultures, the name of a child represents what one is wishing/hoping for that child, in which case lame would be considered rather strange. I wouldn't wish that situation on anyone, so I wouldn't name a child that either.