Upload & Sell: Off
^well, that's like job listings - they write what they want, in their ideal world. If you don't throw out an offer you'll never find out what they'll actually settle for
If someone has an unreasonable price, I'm not going to haggle. Just like I won't respond to unreasonable lowball offers. If you can't start with a price that is rational, I assume you're not going to be rational about haggling either.
I sold a car last year on Craigslist, and can't count the number of people who offered me half of what I asked, or less, despite having priced it aggressively. That's just trolling, and I've never had a price troll end up buying something at a reasonable price. Same thing when I sold a house several years ago: when someone is asking for 35% off, they aren't going to negotiate back to something rational.
Point is, if someone's not realistic on the offer or the asking price, I don't think it's worth wasting your time.