@Amelia , I noticed that the view I made for you already includes the number of comments:
https://edgeryders.eu/en/opencare-explorer
So I do not need to create another, do I?
Sort by # of comments?
It would be helpful to be able to sort by comment (rank from greatest to least comments) — is that a possibility? If not, you are right, I can see how many comments each post has.
Done
See if that works better. Happy coding 
Merci!