The reality as I see it is that our owner is ultimately seen as dodgy because he has NOT got hundreds of millions to inject into the club. People are looking to frame him as a terrible owner, criminal, looming bankrupt on the basis of just speculation. If Gao was pumping 100 miliion a year into the club on 3 big name players I very much doubt that anyone would be questioning how come he's so rich and where is the money coming from. City and Chelsea fans provide plenty of evidence for that. Seems ironic to me that when the money isn't flowing freely people are looking for issues with what we do have yet when there's an unlimited stream nobody cares. The opposite should be the case because money is always dodgy somewhere along the path.
Alternatively, peoples' perception is informed by his history (where he had to turn state's evidence to avoid the death penalty, and where he only came to own our club by a technicality), the bit where he had to spend months getting together the funds, or the bit where he hasn't demonstrated much involvement with the club over the past couple years beyond stating that we can't expect his largesse.