Launchpad provides much of Ubuntu's underlying development infrastructure, including bug tracking, code hosting, project management, and localization tools.
For example, FogBugz has lots of features, and even more non-features, designed to make bug tracking actually happen.
Actual bug tracking, project management and source monitoring happens on GitHub.
XPlanner-plus is an open source tool, commonly used by agile teams for bug tracking, issue tracking, and project management.
With bug tracking, every idea gets into the system.
I'm working on an article about bug tracking.
Do you do formal bug tracking?
Launchpad is used for certain bug tracking and configuration management utilities.
What's the sociology of bug tracking?
Eventually, they'll see the value of bug tracking and start to use the system as it was intended.