I indeed noticed the pop up adverts on his channel, but I don't see the problem with that?
There's really no problem with it in general. I just don't like to reward behavior that I dislike. I recently read how much money people with millions of YouTube views are making and it just goes against my grain to contribute to his. I don't think badly of anyone who does. And I'm happy that humble, gracious people like Equip2Endure can support their videos with this sort of income.