At the time of the last Lintian run, the following possible problems were found in packages maintained by Hajime Mizuno <email@example.com>, listed by source package. See also the full report, including info, experimental and overridden tags. Also see their QA overview.
dash-functional-el (1.2.0+dfsg-5) [Uploader] §
silversearcher-ag (2.2.0-1) §