There’s a difference between a dispassionate telling of the facts, and a heated accusation of wrongdoing. The more your remarks hew towards the latter, the more likely you veer into defamation territory, which robs you of the high road and puts you in danger of getting sued yourself. The last thing you want, as a victim of copyright infringement or breach of contract, is to defend yourself against a defamation claim. And the more prominent they are, the less likely they are to feel bad for suing you. After all, they have a bottom line to maintain, don’t they?