I'd imagine he only reason adblocking is still as effective as it is is because it's used by so small a number of users. If it would ship by default, advertiser

I'd imagine he only reason adblocking is still as effective as it is is because it's used by so small a number of users. If it would ship by default, advertisers would have a much greater incentive to work around it, and ruin it even for the small minority of people using it now.