Or did you think bloggers blogged out of kindness?
So I consume. And pay what I am aware of (attention) and what I am not (tracking and ads).
I'm using "the customer is always right" in its idiomatic sense, not in a literal sense. The point is: arguing with your customer that what he wants is wrong is not a fruitful approach to ... well... anything.
1) Commenting on one's own blog about things one has observed that could be adjusted to improve the market as a whole is perfectly fine and doesn't usually do any short-term damage to one's brand (you can touch a nerve and trigger a boycott, but that's probably unlikely given this topic). Comments on this topic are important, because people who use ad blockers may not realize that their short-term gains are pointing to a world where content creators have to bake the ads into the content itself to get paid. If they don't want that, it's good this signal is in the zeitgeist for them to consider.
2) Sometimes, even deciding a specific customer is too damaging to your ability to serve customers in general and service needs to be refused is the right choice.
To pop out of the analogy and into the world of web transactions: people are very much allowed to run ad blockers. And I'm very much allowed to craft a site to detect ad blockers and begin 400'ing requests or failing to load page content if I can't verify the ads are shown. It's, ultimately, your content to display and my content to vend. It's a two-sided transaction by the very nature of the protocol.
In what sense of the word are you a "customer" of Troy Hunt?