You can see why a particular package is considered a bad quality by looking at the details provided in that dialog box. It usually has to deal with how a package is packaged and not the package itself.

If the package doesn't meet the Debian policy, then it is considered to be of a poor quality.

Some common issues that trigger this warning are:

• The package has some file ownership errors


• There is no valid "Installed-size" field in the control file, etc.