I'm sorry if this is in the wrong section, but as it is a business I felt this was more appropriate than the general area. I have a friend who posted on a business' social media page (a "Smoke Shop") saying that some of the products seemed like counterfeits (he knows his stuff) and that some products they sell can be dangerous (legal smoking mixes). After posting, somebody from the business privately messaged him abusing him, making false claims, and threatening legal action (see images below). They then posted his information asking for his whereabouts. My friend feels, obviously, intimidated by the way they were responding to a calm criticism. My question is, can anything be done about this harassment? It's extremely unprofessional, but I'm unsure as to whether they're just being rude or are breaking the law. Thank you in advance for any information. Images: - Album on Imgur Edit: In addition, theyhave previously posted naming and shaming others with things like: "We just want to leave burn mark on his hand as a reminder for his stupidity and cowardness. We will hunt him. We will find him. We will torture him."