User blog comment:Kirkburn/Technical Update: March 3, 2015/@comment-426872-20150308003206/@comment-4738639-20150308123210

It seems like the chosen method of assessment of its usefulness is inaccurate this time and they should restore it or at least give the option to display it.

Also, this leads to wondering of how much of the data collecting done is accurate too if it based on clicks when its main usefulness could be its display of information and not how interactive it is via clicks or taps.