Only replying to a snip of the replies but...
Lintian has dropped some tags that were considered inaccurate. Some have changed priority, so unless you are displaying Pedantic or Experimental you will no longer see them. And others have had their checks modified to minimize false positives, so they may no longer flag for your code base. I personally check locally with: lintian -iIE --pedantic Then I choose to ignore Pedantic and Experimental tags that I don’t feel apply to my project.
I do exactly what Soren does, at least with my local builds. I run every build through an `sbuild` chroot that does lintian checks with `-iIE --pedantic` and then while I notice there's pedantic and informational level errors, the vast majority of them I disregard. There are cases where warnings or errors show up in the Lintian output that can be specific to that Lintian version being out of date or where overrides are needed, but informational, experimental, and pedantic I usually just check locally and then determine if it needs addressed or not.
(I also check the source with Lintian, but since my main machine I develop on is not the absolute latest, I always use the sbuild chroots or chroots in general with updated lintian to run the lintian tests on.)
Thomas