from past experiences, I would not have expected the fact they advertise here to have had any input as to if posts about their business got "pulled", far more likely that the complaint itself was enough to get the posts "pulled".
Free Speech is not an absolute freedom.
There are some limits as to what can be said about someone else, and since this forum is read all over the world, the laws that most favor the folks being posted about are the ones we have to follow, and sometimes and in some places, those laws are designed to insure that only positive things can be said about someone with enough money to hire legal advisors to "muck up the water", and truth is not enough of a defense to avoid those types of legal entanglements. You can Google "slapp lawsuits" to get a better idea of what I am talking about here.