Anubis is open source and changing/removing it can actually be done for free without any laws stopping you,
They kindly ask you to pay them to do it as part of a kind off enterprise service, using the logic that if your website is professional enough to care about a logo, its professional enough to support the work it is relying on.
Reminds me of Anubis charging $50 to remove the :3 moe fox girl.
Not quite the same,
Anubis is open source and changing/removing it can actually be done for free without any laws stopping you,
They kindly ask you to pay them to do it as part of a kind off enterprise service, using the logic that if your website is professional enough to care about a logo, its professional enough to support the work it is relying on.