If we got rid of everything that wasn't "needed" the game would be in a worse state than when it was released. This feature definitely should be implemented. The whole system of how the game deals with items is flawed anyway. Try opening a faction NM chest with a full inventory for example, or doing a quest like CRP 30 and unexpectedly getting an item reward with a full inventory. Not so much a problem now but inventory used to be a huge issue. It's all in the category of making the user experience better, something that always needs to be considered when developing a piece of software. If it isn't, people stop using it.