At the time of the last Lintian run, the following possible problems were found in packages maintained by Stefan Potyra <email@example.com>, listed by source package. See also the full report, including info, experimental and overridden tags. Also see their QA overview.
dlt-viewer (2.18.0+dfsg-1) §
fauhdlc (20180504-2) [Uploader] §
faumachine (20180503-4) [Uploader] §