why the update patch issued is so frequent??

i think there is too much champion base stat changes and skill adjustment that make players feel tired to get along with. why do riot issue the patch so frequently,why can you just issue patch at constant peroid ,for example every three months or six month
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We're testing a new feature that gives the option to view discussion comments in chronological order. Some testers have pointed out situations in which they feel a linear view could be helpful, so we'd like see how you guys make use of it.

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