>> Now imagine that you're not just removing people for trolling. You're also removing them for: - mentioning rival businesses - saying bad things about the bus

>> Now imagine that you're not just removing people for trolling. You're also removing them for: - mentioning rival businesses - saying bad things about the business - talking about the special price they received from the business - sharing private coupon codes There are no silver bullets to solve the problem of moderating chat messages, but guidelines stating all of the above are not allowed and that users who violate these guidelines will be banned, is a start. As an example of moderation+guidelines working, HN is a decent example. Things like hate speech, attacking people belonging to certain religions still happen once in a while here as well. Since the mods are active and ban such users, trolls are kept under control. > Imagine a screenshot of a business's website with a chatter posting about pedophilia. Theoretically possible, just like how a user can post the same message in comments sections or forums and capture a screenshot even if chat was not present. It really sounds more of a sitcom type problem and even if it does happen and someone captures a screenshot, people surely won't take trolls seriously. When was the last time something like this happened? Anyway, thanks for the feedback.