From a psychological point of view, it is designed to pique your curiosity (intentionally left blank) and prompt you to click the "...more". I would avoid the urge and investigate how it got there and how to completely remove it.
Pops up whenever I open (beloved wonderful marvellous forever mine) iTunes. Disappears whenever I close (beloved wonderful marvellous forever mine) iTunes.
Pops up whenever I open (beloved wonderful marvellous forever mine) iTunes. Disappears whenever I close (beloved wonderful marvellous forever mine) iTunes.