On BBB, it's an easy Google search.

BBB is well known for pay to play rules, https://en.wikipedia.org/wiki/Better_Business_Bureau#Critici.... They attempt to keep the image of the organization pristine by tamping down on the pay to play when it's aired out in public, but the fact that it's a ongoing problem at multiple offices for many years before anything is done shows just how much they care.

It's only speculation about Angie's List, which is why I said "probably." If you look at their business model, they get money from all sides -- consumers and businesses -- which leads to inherit conflicts of interest.