Yeh, like others have said, it's not GT doing this. It's YouTube's algorithm. I was also seeing the GT ad a lot. It knows you are a guitar player and so it's showing you ads that are relevant to guitar players.[br][br]I think there is a way to stop seeing repetitive ads assuming you are signed in to YouTube.[br]There is a little (i) icon in the bottom left that you can click on (at least on desktop YouTube)
When you click it shows a popup with a link to "Stop Seeing this Ad". You will of course continue to see other guitar related ads! :-)[br][br]