Comment 3 for bug 3945

Debtags support in Launchpad would be a _quantum_ leap in usability. Seeing that the last comment on wish was over 3 years ago, I'd like to bring it back into focus.

Use cases:

1) I am interested in structural biology. I set a notifier in my profile, to alert me every time something happens with a package related to 'field::biology:structural'

2) I plan to do a revision of the FOO library for image manipulation. I want to do a search on bugs affecting handling of FOO images. I do a bug search on works-with::foo. Later, I repeat the search, looking for what packages needs to be updated for the new FOO library.

3) I have heard someone is packaging a program that will display 3D images of objects in an ncurses interface. I mark my profile to look for events in packages tagged interface::3d, uitoolkit::ncurses (most likely, I will wait forever ;-))

4) I'd like to make a search of software in need of packaging (needs-packaging) in my field, so I can help out. However, I only know the Perl language, so I also tag devel::lang:perl:

5) I am interested to see what LP projects are working with music. I search the projects for the tag 'sound::sequencer:'

Debtags are well established and (not quite yet) used in Debian. A very convenient web interface exists for setting debtags, and the system is structured enough to know what kind of information it needs.