Danny sure is a big loss for that project. He has been in that position for as long as I can remember.
The MinGW project has lost an admin and a packager, but most importantly, a captain who held the ship's course in rough sea for many years.
However, as dramatic as it looks, let's not panic. They still have 3 admins and 40+ developers, so this shouldn't necessarily be the death of the project.
Also, Danny is still listed under developers, so he may just be taking a break from being admin (I found no reference that said he wanted to quit), so he may give the new captain a hand when he needs.