> there is no legal problem with doing this

They are explicitly forbidden from doing this without attribution. So yes, there is a legal problem with this. All they needed to do to avoid that was provide attribution, but Delve was staffed with such morally bankrupt and incompetent individuals that they couldn't even do that.

How is there no legal problem with violating the license terms, which explicitly require attribution?

Replying to my own comment -- didn't realize it was Apache, thought it was MIT. Flame on!!

You clearly did not read the article. Why post something so confidently when you're not even informed on the topic?

> A permissive license whose main conditions require preservation of copyright and license notices.