Michal Čihař - Ubuntu bugs

For quite a long time I wonder, if there is anybody looking at bugs reported in Ubuntu. Whenever I look at bugs reported in Ubuntu on some of packages I maintain in Debian, there is huge amount of them. Most of them are simple duplicates, but still it indicates that nobody have looked at them. Some are simply something what should be forwarded upstream, while some are clearly packaging bugs, which I usually fix. However I think there should be somebody at Ubuntu side looking at them and forwarding them to right place...