Is reporting a player even worth the time?(FIXED)

We all agree that sometimes we can tilt and get salty over a game, but there has to be some limits no? When a player steps over the line we proceed to report him under whatever circumstances the player'r behavior falls into. I think that usually, toxic players will always be toxic players, leading into a series of reports on that account. But when I see things like the image I attached, it makes me think if reporting the user ever works. Being this aggressive over a simple comment can't be this user's first time. I'd like to think that he might have gotten several reports already but maybe the reporting system isn't working as it to currently is. How can we stop users like this one being a part of the League Community? How can we ensure that this type of behavior will stop?

PS. Sorry for posting usernames I wasn't aware of the rules since I don't visit the site that often. I tried editing original post but I couldn't remove the link.