I would rather the titles had to match /\S\s+\S/.
(/^\S+(\s+\S+)+$/, perhaps?)
:-)

It does not sound too draconian to me. Every time I visit NtC, I feel more and more sorry for the editors. (hash? Hi? Cookies? Mmm, cookies.)

Just make sure the error message tells the poor user why his title is bad, not just how it is bad, and it might even work. Even if it does not, well, there is no harm in being a little draconian, right?