What system do those games have where company has publicly said is a reward for positive players but then makes you grind hundreds of games or charges money to unlock the free items?
There's already enough grinding in this game. Grind for runes, grind for champions, grind for rune pages, etc etc etc. Why can't we just have a pure system that rewards positive play? Why even bother making it a grind?
Your metaphor doesn't make any sense. People are playing 30-50 games and not getting a single key fragment. That's like purposely being ignored in a bar until you tip the dude to serve you.
In order to open my 4 chests a month I need to get 12 key fragments. Right now I'm averaging a key fragment AT BEST once every 25 games (and the drop rate keeps going down the more key fragments you get.) So that means at minimum I'll have to play 250 games per month to unlock the chest I earn. That translates to 8 games per day minimum that I have to play. And keep in mind that this was designed to be a free system to REWARD positive players. I just can't fathom why people aren't calling Riot out on this bullcrap.
You should be able to get all the key fragments you need playing a normal amount every day. I understand if Riot wants to make some money on the side for people who don't want to wait but they shouldn't make it near IMPOSSIBLE for the average player to get they key fragments he/she needs just from grinding.
That's my big issue with the system. By making the drop rates so low Riot is basically forcing people to buy keys if they want to unlock their chests because you have to play an absurd (and unhealthy) amount of games otherwise to unlock them.