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> On 27 Mar 2017, at 12:50, Neil via list <list@xxxxxxxxxxxxx> wrote: > > I am wondering, how can anyone be so accurate? 42 percent?? That seems a bit too > exact to me. Since I hate all ads I just move on elsewhere. I am wondering, > however, how do sites lose money due to an ad blocker? They lose ad revenue. But 42% seems way too much. There is a big debate about how much ad blocking takes place. But it's probably under 20% in desktop and mobile user base by most estimates. Also the numbers I see from Ad block software providers are orders of magnitude smaller than numbers you see from advertisers. So either there are an awful lot of Ad blockers, a lot of Ad blocker software copying, or maybe the advertisers are making it up/mismeasuring. Nitpick - Numbers without error bars can be overly precise but have no indication of accuracy. We lose 42% of our ad revenue (+/- 41.9%) I'm not adverse to the "prob ability is 0.41254 +/- 0.12" type answers,(e.g. high precision with huge error bars) as although they are overly precise it is usually because someone used a computer rather than just making the numbers up. -- The Mailing List for the Devon & Cornwall LUG https://mailman.dclug.org.uk/listinfo/list FAQ: http://www.dcglug.org.uk/listfaq