Updating from daily builds? Hobby OS.
Upgrading to new OS immediately after release? Thanks for finding all those zero-day exploits and rare bugs for the rest of us when we eventually upgrade.
Applying ONLY critical patches, and even then only when thoroughly vetted? You're using your computer to do actual work, and can't afford downtime.
Odd. My update patterns do not fit on your axis.
I furiously update and live on the bleeding edge until I find something that works well and the way I would like it to work. I then only update for security purposes or because the software will not run anymore due to changing hardware (X64) or changing software environment (GLIBC).
In other words, what you are saying is most important you, stability, is not what is most important to me, usability. What is most important to a person will determine that person's update patterns.
For others, it is familiarity instead of stability or usability. That is why I find your axis to be limited.