In every communication, the sender assumes that the other party has some knowledge. For example, I assume that you can read my badly worded English text. There is rarely confusion with the people in the fields that use dB a lot. That other people often get confused by dB is not a failure of dB, not even of its common use, the same way I can't blame English for not being Chinese, or for Americans use F instead of C, or K, for temperatures.