It is widely known that account selling/buying/trading will receive immediate red-trust. You have also admitted to leaving nonsense retaliatory feedback.
You can kick up a fuss about this as much as you want, but you only need to look at all the other threads complaining about the same thing to know that your feedback is only going to get worse.
I did not say I do not deserve my negative trust.
I'm saying that this guy is blackmailing users, and I think this too should not be seen well by the community.
I don't know what that picture you linked to has to do with me, or even what it is. Looks like a conversation between two people, neither of which is me.
You ought to look up the definition of "blackmail", because me leaving you a neg for trying to sell an account is not blackmail. If I were to ask you for money to remove the feedback, that would be extortion I'm pretty sure, but I haven't done that. It's OK if you leave me a neg. Lots of people have done the same.
Unfortunately you were not smart enough to change the link to the screenshot, but ultimately a person who blackmails for 70 $ I doubt is smart