Here is a Dataview Query I recently added to me reporting system. It helps my identify the notes I have not modified since the day I created them. I hope someone finds it useful.
LIST
WHERE dateformat(file.ctime, "yyyy-MM-dd") = dateformat(file.mtime, "yyyy-MM-dd")
SORT file.ctime ASC
It is amazing because it’s so simple! 
I had a similar thought and created a query showing a number of the days between ctime, mtime and today, sorted by “biggest”, which is doing a great job. But yes, big numbers are getting me slowly frustrated 
So, I like your approach as it’s more convenient and easier for our eyes 
Cheers, Marko 
**Added more telling title.**
Well then. With a more telling title there is no room for the thread to grow with other useful examples.
Sometimes less is more. DiCarver. Hope it is helpful.
With such a generic title you’re close to duplicating other threads dedicated to useful dataview snippets, and it hides some nice and simple queries.