One of the biggest Youtubers Jenna Marbles account has been deleted from YouTube. When going to her channel the message says that the account has been terminated due to repeated violations and/or copyright claims. At the moment it is unsure why the account has been terminated but the account had near enough the most subscribers on YouTube so its unknown what will happen next.
Update: The account is back available again. Its not known why the account was suspended in the first place.