Default warning for overpriced/underpriced listings
Argh. I somehow bought a ring enchant for 1M gold, and Blizzard won't help. I never noticed the very high price. I can't explain why not.
Some guy posts super-overpriced listings on a lot of common items, hoping to catch people like me. I knew about this, but got caught anyway.
Suggestion: Enable the "Buyer Confirmation Alert" option, and probably with a lower threshold, by default. I only just found out that this exists, and it would have saved me from losing years worth of gold.
TSM already has this feature. You may find it under Settings > Shopping/Sniper.
Buyout Confirmation Alert:
min(100000g, 200% dbmarket)
Change it to whatever you want. and be sure to enable the "Show Confirmation alert" checkbox under it