Can you document this case of Quickseller scamming in OP too as it is locked?
Flag support can be added here by the way:https://bitcointalk.org/index.php?action=trust;u=358020;page=iflags
"Lauda alleges: Quickseller violated a written contract, resulting in damages, in the specific act referenced here. Quickseller did not make the victims of this act roughly whole, AND it is not the case that all of the victims forgave the act. It is not grossly inaccurate to say that the act occurred around September 2015."
The link is to this thread. What is the "specific act" and who are the "victims"? I suppose you're referencing the self-escrow thing. When writing a flag, it says this:
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You must create a topic describing the specific acts which damaged you. It must not be self-moderated.
It also says this:
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On my honor, I affirm the following: 1) This user violated a casual or implied agreement, resulting in damages; 2) I have not been made whole by the user; 3) no existing flag covers this same incident; 4) this incident is accurately and completely described in the above topic; 5) the incident occurred roughly in the month given above. Furthermore, I promise to withdraw my support for this flag if this user makes me whole in the future.
I don't care for QS but I can't sign off on this if the format is not followed.
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You must create a topic describing the specific acts which damaged you. It must not be self-moderated.
This is fundamental flaw in the flag design and can be skipped. I'm not letting scammers like Quickseller go because I just didn't happen to be a victim too. 
If mr. Theymos really insists, I can make a duplicate thread of an existing thread from 2015 just to link that in the flag. What does this accomplish exactly? Nothing.