There are more and more accounts that have items on sale which will never sell.
Example:
Example item: Date: 1 year ago: Price 999999 tc. Why not do something with those items?

Market clean up could be nice, like removing all items that were placed 6 monthes or more.

The price isn't what's important, it's the fact that people put up an item and it never gets sold. Some items are 2 years old and never sold

What about things like collectors items where most people don't buy them? If I put an item up for a shit ton more than it's worth, I wouldn't want it to be taken down. The option to show only things within a certain price range is there for a reason.

How would the marketeers work? would all of those items be eventually taken down?

Did you ever take price into consideration?

My point exactly, Some items are put up and the player quit tb. Why not do something with those items.