From the article:
"I know for a fact that Wikipedia operates under a CC BY-SA 4.0 license, which explicitly states that if you’re going to use the data, you must give attribution. As far as search engines go, they can get away with it because linking back to a Wikipedia article on the same page as the search results is considered attribution.
But in the case of Brave, not only are they disregarding the license - they’re also charging money for the data and then giving third parties “rights” to that data."
privacytools.io is no longer the recommended one since the mod/domain owner split a long while ago, it now heavily endorses ads (such as nordvpn) you instead should use
https://www.privacyguides.org/en/tools/
Brave still is a great browser just disable a few settings as recommended in the guide
Brave is still Chromium in a new coat of paint and you’re still aiding Google in their domination of web standards.