Regarding the subject of Mana as a company going bust, I think it's sad news and a significant loss to the world hi-fi scene. Love them or hate them, but JW invented the most talked about and significant equipment supports ever made.
Oh, and in reference to JW supposedly ripping people off, I'm not in possession of any more information than anyone else regarding what's happened with people not receiving goods paid for, etc, but what I do know (knowing JW as a person) is that he would not set out to deliberately rip anyone off - that is definitely not his style.
Whatever has happened to cause this situation, I can guarantee you he would not have intended for anyone to lose out on goods they have bought and paid for. Yes, I know that appears to be the case, but there will be other reasons for this happening, that's for sure.
Marco.