Frankly, I find that hard to believe. Tech people are much more likely to follow tech news and be informed of addons like ABP than the majority. If you look at the Firefox and Chrome adoption, for example, that certainly happened, so I don't see why would this be any different.
I'm not saying every tech people uses it, of course (I don't), but without data I think the existence of a strong correlation between the two is a fair assumption.