I recently came across this question How to workaround "update-rc.d: error: no runlevel symlinks to modify, aborting!"? and at a first glance I assumed it was off-topic because it would serve better as a bug report on Launchpad, however when I read it through more properly I found that the person had already reported the issue in 16.04 on Launchpad (as they had linked the report), and were now just looking for a simple workaround until the problem was fixed...
So should I still VTC it as off-topic? And future questions of this sort?