Is it possible to reply to a topic without bumping it? I think this would be a very useful way to warn others of scammers, trolls and suspicious posts without bumping the thread to the top where more people can see.
It is only possible when you already have a empty post in a thread. Other than that I don't think it's possible to reply to a topic without bumping it because each reply bumps a topic and no matter what the topic won't remain un bumped when a new reply is added.