You should get rid of them to provide more metadata about this software.
Last update: 2018-06-04
Standards version of the package is outdated.
The package is severely out of date with respect to the Debian Policy.The package should be updated to follow the last version of Debian Policy
(Standards-Version 4.1.4 instead of
Last update: 2018-04-16
4 new commits since last upload, time to release an update?
vcswatch reports that
this package seems to have new commits in its VCS. You should consider updating
the debian/changelog and uploading this new version into the archive.
The Vcs URL git://anonscm.debian.org/debian-science/packages/tkhtml3.git is deprecated/defunct, https://anonscm.debian.org/git/debian-science/packages/tkhtml3.git was tried instead. Please update the Vcs field in debian/control.
Last update: 2018-07-03
The URL(s) for this package had some recent persistent issueslow
DUCK reports some issues concerning upstream URLs defined for this package.