How to spot a troll listing
Why a $5 item can show a $900M price, and how to tell a real price from a joke.
What they are
Anyone can list anything at any price. Some people list a cheap item for hundreds of millions, as a joke or in the hope of a misclick. When normal copies run out, that joke can briefly be the cheapest one on the auction house.
What we do about them
A price is checked against what can't be faked: what buy orders offer and what the item costs to craft. Listings far above that are left out of prices, counts and totals. Anything listed at $1B or more each is left out too.
An item with neither orders nor a recipe is checked against its own past week instead. If only a few are listed and even the cheapest is over 100 times its recent low, they're treated as jokes, and the item shows as not listed.
Charts also smooth over hours far from the days around them. Some trolls still get through, usually at prices that are silly but not quite that silly.
How to check for yourself
Compare the price with the usual price and the chart. Look at how many are listed, and whether there are buy orders near that price. A price with no orders near it, on an item with only a couple of listings, isn't a price yet.