Some useful views of the DebianInstaller bugs in the bug tracking system:
Bugs in packages maintained by the d-i team, excluding old installation reports and other cruft: http://firstname.lastname@example.orgemail@example.com
Note: to exclude a bug from this list, usertag it as not-d-i (user firstname.lastname@example.org). Do so only if the bug doesn't actually affect d-i; ie if it's in a package that is maintained by debian-boot but used for other things.
Bugs in other packages in Debian that affect d-i: http://bugs.debian.org/tag:d-i
Installation reports, categorised using usertags: http://people.debian.org/~fjp/d-i/installation-reports.html