The percentage of visitors with an ad blocker depends on your site's audience. Outside of computer geeks and gamers, almost no one uses ad blockers. I wouldn't buy into the hype that the whole world is installing ad blockers.
The folks at Segment.io warn their users to expect ~20%, with the caveat that blocking rates vary wildly between demographics [1].
[1] https://community.segment.com/t/1889n1/how-common-is-client-...
Its not technically difficult at all. It takes a few clicks to install and one click to disable on the minority of sites that don't work with ad blockers.
I highly doubt I'm entirely atypical.
[1] https://pagefair.com/blog/2016/mobile-adblocking-report/
I have also personally seen around 30% users use ad-blockers, for a site with around 100,000 visitors a day. However, most of the audience for that site is people in twenties, so it's not surprising to see higher than average ad-blocker usage.
Purely for self-protection/anti-aggravation I absolutely recommend it to every casual user I advise.
Realize that the link in either the chrome or firefox case will be to the official addon site and in the mind of the user safe doubly so since it came from someone trusted.
What percentage of people who see it will spend the 3 clicks to install it?
* Note I know you have no incentive to actually do so its hypothetical many people are encouraging non techies to do so and have been doing so for a very long time the percentage that are aware of adblocking is increasing.
My non-technical friends have never mentioned ads to me before in the context of the web. I doubt that means they appreciate ads on sites but I don't think it occurs to them that they need to find a way to remove them. I think they appreciate that Hulu lets you pay to remove them, or that Netflix doesn't have ads, but I never hear "this website sucks because of ads." They just assume it's the way of things.
> The other thing about ads is that 41 percent of millennials are using ad block. My daughter has ad block and she goes around infecting every machine she gets to. She puts it on everything.
> But the other thing is that she lives in incognito mode. She’s a total nightmare for advertisers, because she’s not leaving any cookies and she’s not seeing any ads.
Digital privacy is an undeniable rising trend. Just stating the vast majority of people are not using adblock is, at minimum, shortsighted.
[1]: http://www.niemanlab.org/2015/04/the-economists-tom-standage...
Poor things, back to not knowing which 50% of the budget they're wasting, like it's the XX century.
The horror.
Seems like she has the right idea to be honest.