Just want to personally say that your public apology was a class act IMHO. But you do not need to apologize for trying to share DD and help others. You could not have known what was going to happen and no one that I know is a mind reader so they did not know either.
Yes past history can give a person a fair idea of what may happen but if people were that smart they could predict NBA games and be living in Las Vegas making money full time with 100% picks every day.
Keep smiling and you did a service to others and tried to help others. Don't let this ADCS misstep(not yours) cause you to not help others in the future.