Some "personal" journals have hundreds of posts per day, though most of these seem to be automatic feeds of one kind or another (and at least a couple of journals seem to have had all their entries (re-)posted overnight).
The top ten "personal" journals from the last day-and-a-half seem to be:
The top ten communities are:
You have to wonder how some people have time to eat or sleep. (ohnotheydidnt scored a disappointing 87, by the way.)