User blog comment:Kirkburn/Technical Update: January 7, 2014/@comment-5558012-20140107183532/@comment-1038387-20140107231428

Agree with above - a week's just too short.

Shot in the dark: if it's set to a month, maybe you could make some sort of tool that allows admins to see how many days of highlight are remaining. Alternatively, a list of highlighted threads to enable a better management of that section (I have no idea which ones are highlighted right now), or a maximum number to prevent a big two digit red dot in the top corner (meaning older ones must be unhighlighted first).