What is this co-founder's current position at YT? "When the site was introduced in February 2005, Karim agreed not to be an employee and simply be an informal adviser, and that he was focusing on his studies."--wikipedia So, not very influential.
Again, it's just another person's opinion.
* Also from wiki: "In November of 2021, Jawed updated the description of "Me at the zoo" to "When every YouTuber agrees that removing dislikes is a stupid idea, it probably is. Try again, YouTube ".