There shouldn't be a limit to the length of a blog title- I should have the same artistic freedom of Fall Out Boy when it comes to these things. If I want my blog to have a title of essay proportion then no one should stand in my way. Yeah you heard me blogger.com. I'm talking to you.
The sad thing is I had a blog all lined up in my head, but this has ruined the train of thought.
You've no one to blame but yourself.