You have to understand that our admins are very busy people and have to prioritize what topics they answer. In your case, the recommended way is to use collections. There are various ways to browse them and see what games there are in it. And by the way, to see what collections a game is already in? That's just one click from its project page, not four. Two if you have to first get there from your library. I'm not sure how you counted.
We know the system isn't perfect. There are much more urgent things to do. And being rude isn't going to make our dev team inclined to change priorities.