People Making Accounts and Then Not Playing On It

So there are a lot of people, who make accounts then never play on it again. Unless there is already a system in place that deactivates accounts if they aren't played on for a certain amount of time, there should be one. I think they should add this as many people want certain summoner names, but is unfortunately taken by people who make accounts to take names, then never play on it again. Considering Riot make a decent amount of $$ off name changes aswell, I'm quite surprised they don't implement this system. Thanksss <3