Earlier quoted context omitted.
> Usually a clear sign that you are not communicating effectively Agreed. I learned that in emails, a multi-paragraph, multi-item text means the recipient will randomly reply to only one of the points (often the least important one). So an effective email will make a single point, in as brief a manner as possible.
This defines "communicating effectively" in a way that it can't possibly cover a complex topic. Sometimes you need to communicate complex topics, so this definition is a failure. The problem remains that people refuse to do the reading required for their job.
Indeed, I don't think email can be reliably used to convey complex topics.
> The problem remains that people refuse to do the reading required for their job.
Communicating effectively means accepting common flaws of people who are unlikely to change, and delivering your message in the most effective way. Whether people are right or wrong or should be fired (as another comment says) is not truly relevant.
I often fail, by the way. I'm not saying I have this all figured out.