Remove crossed/strikethrough items from search results

It's been a pet peeve of mine for some time that some people instead of removing games from their thread, they simply cross/strikethrough the game from their list: . This makes searching very annoying because games that are NOT available in a person's thread are still in search results. Since asking each and every trader to not do that sounds like a hopeless endeavor, I feel like adding a constraint in the search query to ignore elements surrounded by double ~ would be the "easiest" or most efficient option. I wonder if people think this should be implemented as a feature.

View attached image.