NO
Doesn't pass the smell test to me.
I'm the worlds worst sharpener and have had trouble sharpening some. Persistance, guidance from the forum and other sites have helped alot. Some just take longer than others, changing technique, when you realize you are doing it wrong, but NOT 5 hours.\
Dan has a good idea and would really evaluate it, but I think the guy is just not happy and wants some money.
This copied statement from the url link backs up my theory.
"More than anything I am just ****ed off about how much I miss judged this purchase."
Life is tough! Deal with it! OR learn to sharpen. Don't go crying because you made a misjudgment on your part!