When developers go MIA

Note that I published a paper about the problems of maintainers in Debian who are MIA back in
2004 when I stated to systematically approach this problem:
http://www.cyrius.com/publications/michlmayr-mia.pdf
The tools have all been rewritten by the folks in Debian who do MIA tracking nowadays, but
many of the issues discussed in the paper are still the same.