That's up to you. I block everything and I'll never go back. I just want the whole advertising industry to go away. They've betrayed my trust so often that I'm never going to let them back in. In any form. I don't care about the collateral damage in the services and sites they 'support'.

When I ask around me people don't really have a very nuanced view either, though they're not as hostile as me, most of them just believe it is unavoidable. They don't have the skills I have in ad avoidance. But they don't have any kind of ethical concerns.