As has been said in the linked thread they will give poor offers on cars they may struggle to sell on and good offers on cars that will go quickly.
They are here to make a profit, they are a business, which is why when you turn up they find all tiny scratches and dents to lower the price.
If, like me, you now have 2 cars and only want one but don't want the hassle of arranging viewings, writing adverts and having people come around to 'kick tyres' then it's ideal.
I've got my price from them for the 206 and i'll take it there sometime before FCS. I don't owe any money on it and my new car is bought outright with cash so whatever i make is mine to pay for a holiday or anything else i need.
But people complaining about them going there and being pushed down on price (Not necesarily on this forum) must realise they are a business!
Sorry for my mini rant, i DO NOT however, support or favour carcraft. But thats another story!