Thanks for pointing this out. I notice this on forums all the time where people use someone's question as a means to talk about themselves. No offense to anyone, but it's just annoying.
I have a curve in my spine, both top and bottom of the spine. Not left right but front to back. It's called hyperlordoris and hyperkyphosis if anyone is interested. But anyway, this effectively takes a few inches off my torso. I'd probably be 5'11 without these curves. So everyone has different anatomy. The curves also make flexibility an issue. This is why I want to ride upright. I'm 162lbs and can cycle 100 miles. I don't consider myself unfit. But I do lack some flexibility due to the mentioned issues. It's my right to want to be upright!