PewDiePie delivered on his promise to delete his channel today, not really, but in a way. He deleted his “dummy,” account that he created as a stunt to prove his popularity called “Jacksepticeye2,” and not his actual main channel.
Some may call this a publicity stunt or try to criticize PewDiePie for this stunt, but the way most of us should see it is probably more as a joke. He’s already the most popular YouTuber with the biggest following, he didn’t need more subscribers, and Felix has expressed numerous times that he’s not in it for the money (which is true since PewDiePie is considered an underpaid YouTuber for the amount of views he brings).
Another thing is PewDiePie promised that he would not quit YouTube after deleting his channel but would just start over again. Which is what every YouTuber does everyday whether their old videos are up everyday. So far PewDiePie has not lied about anything he said he would do but he was pretty misleading.
Either way it would have been a negative effect on YouTube in general if PewDiePie had deleted his channel.