Exactly what I've been saying. There's a reason the v2s were 4 stall minimum and the v3s are 8 stalls minimum.
there's a new supercharger in the remote part of Norway called Skaidi, Norway(supercharge.info and go look a the pictures) and that location only has 3 v3 superchargers. its the first time I've seen anything like it. Maybe Tesla's gonna start using something like this for very rural areas that dont get traffic but still are an important link?
The marginal cost to add a 4th pedestal would be minimal, so there was probably another reason for only 3. My best guess is the folks on elbilforum were discussing a shared transformer with the other L3 charger and wondering if it would be 400V to accommodate both instead of the 480V superchargers need for full power.