Tracking changes. Permanently.

Google docs tracks changes. Know it and accept it. Every ?? seconds it takes a snapshot and saves it in its infinite memory. You can go back to an infinite ?? number of such incremental snapshots of your writing and amuse yourself by looking at its meager progress. But blogger, although snapshotting just as frequently (snapshotting is a word, it turns out), does not keep copies of incremental snapshots. Or at least not any copies that one can access via "History" mode or some such thing. Why not?

Yes, you can post your docs to blog in a click, but what if I like blogger's interface better for blogging? So, yes, in the name of consistency and world peace, let's put history to good use.