The Register article mentions it in passing, pointing to the "Goggles" paper [1] that Brave has published. But the Brave paper actually gives no more information than that quoted in the article; it seems not to address its stance on censorship, but merely to pass the buck in the Goggles use case:
There will be Goggles created by creationists, anti-vaccination sup- porters or flat-earthers. However, the biases will be explicit, and therefore, the choice is a conscious one. We do not anticipate any need for censorship in the context of Goggles. Clearly illegal and sensitive content like child pornography or extreme violence should already be filtered out by the host search engine at the index layer. Consequently, such content should not be surfaced by any Goggle.