Re: "More and more Brits are using ad blockers..."
"Militant would be DDoSiNg ad servers... "
That would be nasty.
Passive militancy might just be setting things up so the servers can tie up all their lovely bandwidth delivering to Dave Null.
With a 80Mb/s connection that's mostly idle, home users could trivially bring the advertising industry to its knees - and the irony of complaining that website users are "viewing too many adverts" would be simply delicious.... <evilgrin>