I always wonder, how come what’s unstable to Debian become stable to Ubuntu? Ubuntu is using Debian’s unstable packages, while Debian never releases any official distro made out of those unstable packages. True, you can install unstable directly from netinstall.
The only difference between Sid (unstable) based distros and Ubuntu is that Ubuntu repackages somewhat differently than Debian, and these packages are not interchangeable. The other Sid based distro developers always give a warning that those distros might break because of the instability, while Ubuntu doesn’t. So, the question, how come what’s unstable to Debian become stable to Ubuntu? What guarantee can Ubuntu give on Debian unstable packages that they are (only) stable, if you use them in Ubuntu?