At the time of the last Lintian run, the following possible problems were found in packages maintained by Guido Guenther <email@example.com>, listed by source package. See also the full report, including info, experimental and overridden tags. Also see their QA overview.
ocaml-libvirt (0.6.1.4-2) [Uploader] §
paramiko (2.0.0-1) [Uploader] §
virt-top (1.0.8-1) [Uploader] §