I have a question for Riot:Does youtubers affect the Balance team on how to Balance a champion?

I mean lets say a youtuber QQ on a champion soo much in a single video thats makes him have over 600k views, and in his comment section there is soo much Approval from his Fans. Does he affect the judgement of the balance team on nerf and buff of that champion? Well I don't want to point out any youtubers but I will make an exemple: You might guess which youtuber because its one of his recent video.

I'm looking at the forum about gameplay and balance and while look at it all I see is nerf proposal to true damage of vayne, then I decide to go watch some youtuber video which completly becomes the opposit of the forum and Reddit and its about Leblanc suddenly becoming OP from one speed adjustement by Riot on her W, this guy proceed to QQ about how op that buff made her and said we will be seeing her much more now aswell as she is going to be in every ranked game and needs to be Ban. He then even called Leblanc is a Copy of Zed and is an AP ZED. I'm sure you guys guessed who I am already pointing out. I would like to go further but I'm not going to because this isn't a hate youtuber comment section. I just wants to know what community affect Riot Balance change the more?

Youtube, League Boards, Reddit?

Or Simply perspective of view of a champion power Based on statistic, Lcs plays, solo queue plays.