This bug report, created by a Debian developper, reproaches that the Ubuntu website is not refering enough to Debian.

I am both using Debian and Ubuntu and loves each other.

However, on this point, I am defending the Debian side.

Ubuntu should definitely refers more to the Debian community on their website and, in general, be more cooperative – though on the latter, according to some recent news, it is improving.

Ubuntu is doing a great work, but they should not forget that most of its packages come from Debian, and not being graceful for that is, at least, a serious lack of respect.