(A less tongue-in-cheek option would be to email John, say that you’re blocking ads, and ask if you can donate instead. If enough people ask he might put up a form?)
Is there anything like gofundme, but for long-running projects? e.g. “Collect money indefinitely to gofundme escrow until the total is sufficient to buy a daringfireball ad slot.”
Is there anything like gofundme, but for long-running projects? e.g. “Collect money indefinitely to gofundme escrow until the total is sufficient to buy a daringfireball ad slot.”