I just searched for the FRK thread and it looks like defaced made a post in there the other day. After reading the post history it doesnt look like he made any release date promises like you are claiming.
There is absolutely no evidence of defaced scamming anyone and actually quiet the opposite. Everyone I know says he is one of the most transparent and honest developers in crypto. So you are mad he isnt working on FRK but what's stopping you from working on it since you feel so passionately about it? By your logic, anyone who gets a new job is a scammer. Give me a break.