I'm not obligated to look at adverts. Adverts are displayed with the hope that some of the users will see them, and that some of those users will spend money.
If there are enough people willing to view your content with the ads, then you make money. If there aren't, you don't. Theft and morality have nothing to do with this issue.
What about if somebody else fast forwards through the ad, or as is more often the case, cuts the ad out completely and republishes the content?
The other reason I don't block ads is that most of them just don't get in the way of what I'm doing. If I'm on a web site where they have ads I disapprove of or make the site difficult to use, I leave that site.
It's my way of voting with my feet about those ads and that site's practices. Of course, there also seems to be a strong correlation between the quality of the content and the quality of the ads, so I usually end up not reading something that's of low value anyway.
If you're a content creator, you have the right to be lazy. Slap ads everywhere, just don't get upset when I call you out and tell you it sucks.
If one doesn't want to see it as a moral choice, on a practical level, if the sites which bring you content you enjoy do not receive revenue, they will either close, offer degraded service, or start charging.
While I don't agree that using an ad blocker is stealing, I have similar feelings towards their use and find it mostly pretentious of people that use a free web and then complain of ads as if they deserve a web free of them.
I don't mind advertising, and often find it useful, especially as someone making software and looking for new ways to increase sales.
If I open a web site with annoying ads, I simply hit the back button or close the browser tab.
- cost per thousand impressions (CPM) - cost per click (CPC) - cost per action (CPA), where the action is something that takes place after the click, like signing up for Netflix.
If the ad buy was CPM, using an ad blocker takes revenue from the site they'd otherwise receive. If not, not.