The evidence presented is strongly suggestive of a pattern of long-term abuse, by multiple users, who have diligently worked to exclude and divert negative information from pages related to the Kochs over a multi-year period. Furthermore, the sophisticated efforts to divert negative information from SERPS and seeming use of a "playbook" to suppress negative content are suggestive of an organized reputation management effort.
How We Exposed Koch Industries' Alleged Scheme
Our "undercover agent" tried to post a "Legal and Regulatory Events" section to the Koch Industries article. This is what the article looked like with our edit. After our edit was reverted, users associated with the scheme interacted with our "undercover agent" on the Koch Industries talk thread. Users Arthur Rubin, springee, Capitalismojo, and AdventurousSquirrel repeatedly tried to cite arcane Wikipedia rules and make broad statements that the content wasn't relevant. However, when we posted a complete list of specific proposed changes, each with supporting detail, it was impossible for them to continue the ruse. The "truth-blitz" caught them off-guard!
What our "agent" did not know at the time was that the pattern of behavior we observed, and worse, had been going on for years. Per the case before the Wikipedia administrators:
Furthermore, the Koch Industries article was not the only one being Astroturfed:
And, the Charles Koch article has been "whitewashed" by this same cast of characters going back as far as 2013:
This type of abuse impugns the integrity of Wikipedia and constitutes a clear violation of its Terms of Service. We are calling on the Wikimedia Foundation to do swift justice to Koch Industries and all users involved in its protracted Astroturf campaign!