suppressed zero = suppressed origin in cartesian coordinates (the “O” where the x and y axes meet).
This leads to a visual distortion (often intended) of the data.
On a proper scale that divergence in your plot would hardly be visible.
(Thanks NPS, btw, for pointing this out - I’ve done so a few times and received some very weird responses...*sigh*)
Back in the '60s (that's 1960's to you newbees) I had a boss who absolutely forbade suppressed zeros in engineering reports. I've mostly followed that rule since then. a problem exists with temperatures, though. There is zero C, zero F, zero K, and zero R. None of these is usually helpful. I also learned from him that it is extremely easy to record a thermometer reading, and extremely difficult to measure the temperature of something.