The Facebook Equation for Rat Hole-ishness

Ally

There must be a mathematical equation that predicts with some accuracy how soon comments on a Facebook page’s post will head up its own butthole.

Something like:

Rat Hole-ishness = (# of likes/posts ratio of comments to likes)/(frequency of posts)*(anything to do with money, government, and public policy)

I haven’t done any math on this, but that sounds about right. Can someone maths out of this? Maths?