Bit of a strange argument frankly.

Some sort of "is this resonating with people" signal is I think useful.

Same reason I look at votes on my old comments. If something gets heavily downvoted then it's probably worth relooking at the comment and trying to figure out why. Maybe my comment was just crap. Maybe it was good but just too contrarian for the audience. Maybe it was ambiguous. Either way there is usually something to be learned from strong signals - both upvotes and down.

There is probably a tendency to overengineer this though. Chances are the default analytics page on your CDN provider is entirely adequate for above basic signal.