The efforts that Josselin Mouette puts into maintaining Debian's GNOME are amazing (and seemingly thankless). He is the most visible member of that team-maintained part of Debian. He also portrays deep knowledge of GNOME's oft-inconsistent and oft-complex internals, and does participate in upstream discussions.
Here are two examples of his heroic efforts:
- His great summary of GNOME's then-current release status.
- With the release of GNOME 3, here he prepares a migration plan.