Slackware :: Dead Items At Slackbuilds.org - Default Source Tarball Is No Longer Accessible

Recenlty I installed sbopkg for maintaining slackbuilds scripts and I found it very useful. But there are some limitations coming from outdated repositories for older version of slackware. Eg. a tar ball with Maxima source maxima-18.1.... which is default in the slackbuilds.org repository for slack 12.2 doesn't exist at this moment. One can find older and newer versions. I understand that maintainers of slackbuild scripts are rather focused on recent slack version. Nevertheless such outdated entries should be somehow marked

in the way that a visitor will know that a default source tarball is no longer accessible. Maybe persons who submit the scripts should be responsible for keeping track for a sources. If that problem won't be solved it is a danger that slackbuilds.org will play only a role of some addons to the very recent slack release - but if this will be a case then simpler is to build say additional two or three DVD's of packages.