I'm gonna take a wild stab at this one. I believe ck is using a form of expression referred to as "sarcasm".
It is defined as a mode of satirical wit depending for its effect on bitter, caustic, and often ironic language.
If a car goes through an auction, it does not mean that there is something wrong with the car. Cars can be off lease or it can be a car that someone traded in a Dealership A that Dealership A does not wish to retail. For example, if someone trades their NSX in for a Ford Excursion, the Ford dealership probably doesn't want to try and retail the NSX because 1) they don't have the right clientele, 2) they don't want to spend time and money advertising it and 3) their sales people probably know nothing about the car. So they send it to auction. It could be in perfect shape.
Flipside, cars at auctions generally go for true market prices. Dealers go to auctions to buy inventory to retail to customers. They know what cars are worth. High end dealers go to specific high end auctions where they sell NSXs, Porsches, MB, BMWs etc. They know their business. If a car isn't going for "market price", there is probably a reason for that. You can get a car cheaper at an auction than from a dealer but you're not comparing apples to apples. When you buy from a reputable dealer, you are getting the car (same as you would get from the auction) but you are also getting some peace of mind. That dealer you are buying the car from presumably had a buyer inspect the car for damage and maybe had a mechanic inspect the car for condition, possibly even spending some money to put the car in saleable shape. The dealership puts their name behind the sale so you are less likely to end up with junk.
If you go to an auction and don't know what you are doing, you could end up buying a POS. Remember the saying, if you can't figure out who the fool is, it's probably you.
A lot of people on this board are looking for an NSX and plan to keep it for years and years. Paying $2-$3k more to buy from a dealer doesn't seem like a bad deal spread over the next 5 years. If I bought a POS, I'd want to know that I can go back to the person that hold them accountable.
Just my two cents. I'd say buy from a trusted private party or a reputable dealer. Dealer auctions are for dealers.