I've been continuing to use DailyDiary since.
I have an apps script that automatically adds a draft response to these prompts, which still starts with an "Oh Life, ...." salutation. The script also adds the day's weather report to the bottom of the draft. My todo list has an item to add top and random tracks from my scrobbled music listening for the day.
In the evening I fill in the body of the response with reflections from the day and off it goes.