I don’t recall seeing an email about surveys and I do review all emails, all I get is like a weekly summary of things which I vaguely glance at. As for regularly visiting the forum, well there are too many things like that in life to keep up with so rarely happens.
My problem though with what you say is that you don’t recognise the need for it yourselves and are just relying on surveys (or rather than this forum?!). Maybe surveys don’t always work? (it didn’t for me, I didn’t even know there was one). Or maybe people answering surveys didn’t think of it as an option and just accept that’s how GW is (and seemingly will never change judging by responses so far), or depending on the survey type and how it’s written maybe there wasn’t a suitable question, or maybe anyone wanting fixed scales gave up on GW ages ago (which in effect I did) and therefore wouldn’t be around to answer your survey?
I think my analogies with clocks, speedometers, and min-max gauges adequately illustrate the importance of a fixed-scale need, even on just a usability/visual quick-reference level.
Imagine how hard things would be if the hands of my on-screen clock or the red circle on my calendar never changed position, but the numbers did:
It would make life much harder, but I guess one could at least say that twice a day for the clock, or once a month for the calendar, one, other or both would at some point be visually correct and in context within defined norms - that’s what GW’s ever-changing graph does to me and I’m amazed more don’t find the same and that you haven’t just allowed a fixed scale as an interface option from day one.