I will just wait until someone earns his money on the naivety of your grandma when she buys some sort of "new" TV that she doesn't need and that is actually 3 times as expensive as in a shop. We will see if you find it ok then. She agreed after all.
My grandma is dead. Think we better stick to the topic of the discussion (which atm seems to be marketplace, not gloves, lol), instead of giving irrelevant examples.
If I got it right, you say that the problem is that some traders make "unfair" offers which get accepted only by new people that don't know what is what in this game.
Now if that's the case, there is a "New market rule" to prevent scamming. Although, I don't see how a player who earned a loomed item already could possibly not know what it's worth of.
What seems much more realistic to me is that those offers get accepted by people who want that exact thing fast, so they are ready to add some gold for that, since the alternative would be making their own offer and waiting (perhaps for a week) till it gets accepted. I don't get how is that not obvious and not fair to you.