Why people don't test development distributions

Major recent upheavals in debian-unstable, related to the multiarch migration and eglibc move, left me sheepishly explaining that "it'd be more trouble than worth to rebuild [some 32-bit applications on sid-amd64] for a few days". That was unpleasant.

But, the bugs were filed and quickly fixed; the big wheel kept on turnin'. Unstable provides me the crucial support for new kernels (and thus new APIs) I need more than anything. Indeed, signalfd() breakage (DBTS 533360) wouldn't have any meaning on most "stable" distributions (backport-happy RHEL aside).

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=533360
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=533362