Black market higher win rate suggestions

greetings everybody, today I'll suggestions a good idea about the black market win rate, since we spend a lot of zp and getti g free crates in same way and opening it and we almost win nothing since there no win rate or otherwise high win rate
today ill suggested a good idea for the high win rate for example if the player "X" opend 50 crate there should be a chnace by 50% to win a rare items , if the player "X" opend 100 crates the chance to win rare items should be 100% why should we do that and what the benefits of this
well this will make people spending more zp or trying thair best to do the events for the free crates cus they know already a chance to win something instead of spending money for nothing and i think so this won't harm nobody to get this , even we can do a notification bar to let people what the high win rate they are at, this will make people's have the right courage to pay money for more crates because they know already they are gonna to win something
I hope i give my opinion in right way to understand it
Thanks

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