You all know I'm an Ubuntu fan. However; this complaint by Matt Chisholm agrees with my experience and, frankly, it is a huge drawback to those like he and I who are able to coherently report bugs and willing to do so.
The pace of development at Ubuntu must be frantic, judging by the 6 month release schedule. Combine that with some cultural problems within the Ubuntu organization and (to some extent) the community and you have an atmosphere that is somewhat unfriendly to those reporting problems. Not really unfriendly. Nothing like that. But unresponsive and at times acting as if the bug were something personal the reporter accused them of.
I think once made aware of this, the Ubuntu folks will change their ways. That is what has happened at every turn when their users have called for change. It might take them some time, but that is just human nature.