Clearly that it's my opinion that such behavior is unacceptable. There is no legally unacceptable behavior here. But private or not, why couldn't a company's behavior be regarded as unacceptable? There's plenty of things that, while legal, are not things people would be comfortable with a company actually doing. Plenty of people find Facebook's actions unacceptable. Are those not legitimate opinions, backed by reasoned arguments? Absolutely they are, even if there are reasoned opinions on the other side as well. What you seem to be saying is simply that you don't find unacceptable.