I've written a bullet point message to a client once. He was pieved because it sounded like I was enumerating his failures instead of genuinely asking questions. I find that bullet points are only good if you enumerate what you've done, or something neutral. But nothing in regards to what somebody else needs. It's really aggressive.
I've found that bullet points come off as really aggressive in communication.
I find that it improves clarity. It also seems the readers respond well to that.
With that in mind, why are bullet points so bad ? they seem like a simple technique to simplify writing.