Earlier quoted context omitted.
You know, I consider myself fairly liberal on technical issues, and I agree with you in the general sense, but I don't agree in this specific instance. This isn't a situation like Aaron Swartz, where the companies in question are restricting access to publicly-funded research. The newspapers are privately-funded entities that conduct their own investigative journalism. This isn't a situation like Weev, where there wa…
My argument isn't based on liberating content, but that it's simply not one's responsibility to implement someone else's business rules. The problem is that the publishers are still supplying their content for free, while then trying to attach arbitrary post-facto terms. It would be straightforward to just not send the article to someone they don't want to view it, but yet this is not what they have chosen to do.
Note the description from the add-on page "This extension will mangle your browser's requests to maximize the chances of bypassing paywalls". This is where there's a meaningful difference from the Weev situation.
You can also choose to not read the content if you don't feel it's worth the money.