To make matters worse, much of Google's Knowledge Graph -- their database of facts -- is taken from Wikipedia. There are many problems with this approach. Wikip

To make matters worse, much of Google's Knowledge Graph -- their database of facts -- is taken from Wikipedia. There are many problems with this approach. Wikipedia facts are often unreliable. They are easy to vandalize. Many pages are unchanged for years because editor numbers are rapidly declining. Pages are also easy to game, both by external forces (spammers) and internal forces (bias seekers). Wikipedia editors are now working as Google's unpaid fact checkers. It's true that people edit Wikipedia for a variety of reasons, but for many contributors the site was supposed to be a free resource: contributed to for free with the promise that the content would be free to the reader and free of advertising. Instead it is being used to further Google's profit.