This is the best summary I could come up with:

Unfortunately, we are penalized by the modern Internet for leaving all previously published content live on our site," Taylor Canada, CNET’s senior director of marketing and communications, told Gizmodo.

Proponents of SEO techniques believe that a higher rank in Google search results can significantly affect visitor count, product sales, or ad revenue.

However, before deleting an article, CNET reportedly maintains a local copy, sends the story to The Internet Archive's Wayback Machine, and notifies any currently employed authors that might be affected at least 10 days in advance.

It is perhaps another sign of how bad things have become with Google's search results—full of algorithmically generated junk sites—that publications like CNET are driven to such extremes to stay above the sea of noise.

From time immemorial, the protection of historical content has required making many copies without authorization, regardless of the cultural or business forces at play, and that has not changed with the Internet.

Archivists operate in a parallel IP universe, borrowing scraps of reality and keeping them safe until shortsighted business decisions and copyright protectionism die down.

I'm a bot and I'm open source!