I would not suggest Hudson Bay or Ayrton are ethical, but they generally stay out of trouble with the law.
I don't know who may be shorting, but there were 250 million shares that offering holders could be disposing of before the offering. That may be the hold up for the offering. They don't want to close before they dispose
I don't think people qualify to be ethics police here, not even close. So I would be the happiest person on the message board to see all references to ethics evaporate
The only ethics people in delcath should live by is trade carefully, nothing else will suffice