Upload & Sell: On
If you've shopped for stuff here, you'll notice pretty much everything that sells has an appropriate "used" discount. Even BNIB stuff. I'm rather new myself but it's clearly a common, though not universal, practice here.
Not sure how they're hounding you, do you mean they're making offers? People have a right to price things the way they want, I'm all for that, but people also have a right to suggest they'd like to pay less too I guess. This is basically a bustling bazaar (version 2.0)-- bargaining and cajoling is allowed