Just met a salty Lee Sin main in unranked, he was "working on key fragments".
One key costs approximately 1€, who the f*ck is going to spend hours on LoL with the mindset of "working on keys".
Even a tramp makes more money to purchase 10x more keys from the store than by "farming key fragments".
From the Support :
> We wanted to give players who didn't play as frequently a good drop rate for keys, without making it feel like farming was mandatory if you wanted keys.
Well, here's someone farming key fragments at 02:00 am.
This thing needs a sub-limit (daily, weekly, i dunno). A hyperbola rate is toxic.
Could be something more or less complex, such as, no more keys after X victories in the same day. No keys today was a bad day. (Don't argue about this example, it's just brainstorming).