So, all you undercutters out there selling items on the trading post for 20 silver less than the lowest selling price.
You’re not only missing out on extra gold that you could be making but also you are causing a more rapid depreciation in the value of items on the trading post.
Many things are already quite worthless on the trading post but seeing valuable items drop by 20 silver or more in value breaks my heart.
So… in summary,
Undercut by 1 copper. You’ll be doing yourself a favour by getting more money and doing the world a favour by preventing prices from dropping dramatically.
Edit: Thanks, SET!