Upload & Sell: On
I posted a WTB ad for a Sony lens. Lanned answered to my ad saying he has one for my price. Of course, if I pay using Paypal gift. I'm not saying he is not legit, but zero feedback and registered yesterday, were red flags to me.
When I post a WTB I also ask to post in thread to see their credentials, that at least hints that I am not doing business with someone I don't know or don't have a reference from.
The other thing I will do is ask this person if they are willing to ship me the item and then after I receive it I will pay them That usually slows them down!