I tried to edit my comment and missed the edit window. I was looking at the wrong sub.

R/programming is currently 6.5m, which doesn't matter because it doesn't invalidate my statement about the last time I checked.

If you want to claim r/programming is actually larger now, you need a current citation for HN traffic which you may not be able to find.

And keep in mind it's going to be tough to compare because Reddit members isn't actually a comparable figure to MAU, as noted elsewhere.