This is why I caveated my statements. AdBlockers, Privacy guards, and so on change the game as more people use them. That said, I've seen no stats but I wonder if that's even a majority.

It's also worth remembering that they are a relatively new phenomenon developed in response to the snooping. There was a long period where companies like Facebook had it all their own way. And this is the period in which the damage was mostly done.

I'm not sure if it's a majority, however, I certainly recommend them everywhere I can. I've been using them since before Google reader shut down, so they've certainly been around a while.