The Mistake is on you. You should have deleted or at least shown that you were no longer providing the service updating the thread and locking it. I see the thread is even self-moderated. Probably to delete posts of complainants?
But then again, it's up to you now... Look them up and settle the issue then convince them to get back here to get scam accusation reversed Otherwise it looks like the negative trust will stay if you don't do anything.
I never deleted posts lol.
I said i can refund them but they are away.... Can't even asnwer on messages.
How did you guys get in touch with each other in order to ensure that the trade went on well?
No Email or other forms of contact? Because it looks to me the users created Bitcointalk accounts to complain once they realized the product was not working
And FYI, in case you are wondering how they got to your thread, Well the magic is Google search. In case I want a specific crack key to certain software, I just have to google and it will lead me right to your advert thread on Bitcointalk so I encourage to update the thread, lock it or delete it.