What happened to BBS YouTubers?

I remember during the 5th anniversary we had so many big bbs youtubers and it was so much fun watching them and they added so much hype to the gmae, but now they don't seem to have the same passion for the game, not to mention that some of them don't even exist anymore on YouTube or they stopped playing the game years ago. Even tho the game is still going strong, what caused those YouTubers to stop making content for the game?

Respect for Aaroniero for all the great bbs content..