This is not a picture of a 12k jump.

http://www.dreamhorse.com/show_horse.php?form_horse_id=1480735&share_this=Y
Breed: Thoroughbred
Date Foaled: MAR 2005
Gender: Gelding
Height: 17.1 hh
Asking Price: $12,000 (US)

It's possible this horse can actually jump, but the picture shows him in very poor form. When you put up picture like this it does 2 things: 1) Turns a buyer off because the horse looks like a cow hurling itself over a 2' jump. 2) Discredits you as a seller. If you use a picture such as this one with horribly hanging knees and then claim this horse can be an eventer, it basically says you don't know what you're doing or talking about.

Sellers Law #3:
Better to post no jumping picture than a bad jumping picture.