In truth, the answer to your last question is: There isn't much difference.
We do allow all sorts of bastardised installations on here, assuming that they come from a pure origin. But expanding that to change site policy would mean swapping our short whitelist into a saggy blacklist. We would also need to maintain the what-we-support list and it would take ...
You are correct, the FAQ should be changed.
Our FAQ says:
Please follow the Ubuntu Code of Conduct, Ubuntu Leadership Code
of Conduct, and this FAQ when participating in this
The first link is http://www.ubuntu.com/community/conduct.
The second link is http://www.ubuntu.com/community/leadership-conduct.
That is correct. But:
The 1st link ...