We're checking if the display of an ad is possible, but the only reason we're doing this is to inform the website owner of how ad blocking is affecting them. Once they have this information, a lot of good can come from it that would benefit all of that websites visitors.

You say a lot of good would come but I think it would just make them more likely to use aggressive adblock countermeasures so deflating their numbers is probably more in line with the best interest of adblock users.

You would be shocked if you would look into the log files of a webserver.

The only solace I have that the only data the webserver will have is activity on that one server rather than all of my activity aggregated and analyzed by google or microsoft.