Just to give a quick tl;dr for those that didnt read to original thread:
Nyktalgia did not scam, but acted in a way scammer would. They asked for loans with the account as collateral while at the same time trying to sell the account. In both cases they locked the threads and asked for PMs in order to stop negative posts. If thats indeed the reason is a speculation of mine, but it was enough for me to leave negative feedback as a warning. As a result I got several PMs from nyktalgia asking me to remove the negative feedback and offering me positive feedback in return. In interpreted this as buying trust or rather buying the removal of negative trust.
I also went out on a limb and said that my negative rating would not have an influence on the buyer. After I read Quicksellers opinion on the subject I changed my mind in this regard. I am certainly willing to remove the negative after some time has passed and the new owner is contributing in a positive way.
Regarding the point that the buyer has no chance to prove that they are not acquainted with the seller, I would argue that in this case they look like two different people from timezones at least 8 hours apart. There is also an alt of the seller that was recently reactivated and registered on the same day as nyktalgia.
It can be another guy, who the seller has employed to do this. There is really no proof either way.