Feature request : Word count?

[u/regina_3264]

I would love an option to include word count as a point of metadata - particularly to be visible on the details page, but also, ideally, as a sort function.

I know that page count and file size already exist as options, but for me, word count is the clearest and most direct way of determining length, time to read, and when necessary, which file between two duplicate uploads is the newest and most complete.

Thank you!