[Piuparts-devel] reference examples for problematic maintscript tasks

[Andreas Beckmann]

There should be some examples for the following tasks that need to be
done often in maintainer scripts and are often done wrongly, especially
during purge (judging from the number of piuparts failures):
  - adding/removing users
  - using ucf
  - using dbconfig-common

It should not be the job of piuparts to provide this
information+examnples, but be some general packaging
instructions/wiki/... that we can link to.

Perhaps there is already such information, but I didn't find it.
Honestly, I didn't even look. :-)

Andreas