The freedom to run what software one wills has priority over the wishes of the website that their ads be viewed.

Viewing ads is then, not a payment, but a donation. And it is generally one that I am willing to make. But I reserve the right to block whatever ads I choose, provided that I have not agreed to do otherwise.

Note:the freedom to run what software one wills does not have priority over everything. I am only talking about this thing.