I ended up with a non-existant tag in the tag field of a new question. When I attempted to post it I got this error message:
Oops! Your question couldn't be submitted because:
- new users can't create tag 'visual'
I'm not sure if this is because I don't have enough reputation (in which case the faq's statement about needing 100 to do so is incorrect (I have 121 on SO) [EDIT: It's dated], or something else entirely.
IF the issue is my not having enough rep explicitly stating that fact would be better since 'new' implies a time based criteria not an activity based one. If the issue was something else then the message should be changed to indicate what the actual error was.