if its called blank, what are you going to select to get access to the underlying comments. (it's hard enough with a trackpad and just a full stop to aim at). Life should consist in at least fifty percent pure waste of time, and the rest doing what you please.
WRT what the dummy text should really be, I would suggest: leaving the title alone, and replace the diary text with:
[UPDATE]: The content of this diary has been removed by the author.
The dots were just a test to see how little it was possible to get away with when editing a diary. I chose "." because I already knew that "." was caught and trapped by the comment post routine. Utsukushikereba sore de ii