The previous owner was DomainContender, so there's at least one person who considered this domain, and in fact owned it for more than a year.
Even IF I did (post here having a target buyer in mind), how could that be construed as extortion? In my mind it could only be construed as stupid. Why advertise here, when my targeted buyer is a specific person? I know how to use email.
I posted here with no target buyer in mind at all. The target buyer is anyone who views this thread.