I'm grateful for the fact that so many people are open to share their knowledge for free. But even in this case, I'm paying for the internet to visit their websites. And for the amount of information I get from HN, I'd pay for a membership subscription.
One is entitled to add ads to one's webpages. But the computer is mine and I'm totally free to not display them. The same way I'm free to mute my TV and switch channels when the ads start. Or skip forward on the podcast. It's my personal computing/entertainment space, I decide what I'm exposed to.