There's no equivalence, as outlined in the article. Discourtesy in a wildly unbalanced power relationship is significantly different depending on which side is displaying it. Further, wasting your time that you are being remunerated for is vastly different to wasting somebody's time when you are not remunerating them, but merely dangling the carrot of possible future remuneration. Your use of the word "abuser" is patently absurd.