For Sale: Langster wheelset- polished alloy with fixed sprocket and freewheel

^^ Again let me quote you the rules.

It is provided to give you a "wild west" alternative to eBay and auction sites in which you can choose to accept the risk of the transaction in exchange for dealing face-to-face with another member of the community.

And if you're referring to the vast majority of classified ads here, I'd wager that they also state in the OP

dibs followed by pms

And yeah it's a cheap wheel-set, luckily I have plenty of wheels already, so no interest here, beyond seeing a newbie who needs to wind his neck in