I asked this on Ubuntu.StackExchange but only got 3 answers so far, so I wanted to put this a bit more publicly too. What keeps you from packaging, patching, etc? If you do those things, what keeps you from applying for upload rights?
About 150 people are members of lp:~ubuntu-dev right now. There are also a handful of people who haven't yet become MOTU or joined another developer team but do good work. More hands are always needed, so what's keeping the rest of you folks away from this area of contribution?
For reference, 150 is a pretty small number given about 30,000 packages. Debian has more like 1000 developers.
Feel free to answer here in the comments or on U.SE.