Understandably, he'd like to earn money on his content and I see no problem with that. But for me to visit his site and have Google add yet another tracking event to their "interest pile" about me (I guess i'm in the market for bikes now?) is a bit off putting.
He can't be making more than a few bucks a month through that single ad, right?
He's been dead since 2008, so I assume the banner ad keeps the lights on in the absence of his income and input.
if this is the pinnacle then I want nothing to do with it.