Heliport,
You need to get out more often. Lu has been doing this for a very long time on alot of boards. He has pissed off most Robinson professionals and you can find dozens of "rude" posts all over the internet from people sick of Lu and is unfounded accusations. The reason Lu is such a threat is that he claims to be an engineer and people listen to him more than some pilot who only spreads rumors. I can only discredit his lack of any evidence and processes because he has neither.
Do you just take his side because you believe him or that he paid you some money?