Saber’s AI Rideshare Stimulator controversy almost closes on high note with CEO apology, then he calls Portal scribe who mocked him an ‘unsuccessful writer’

  • By: srtmorar@gmail.com
  • Date: August 16, 2026
  • Time to read: 4 min.


The Rideshare Stimulator AI fiasco almost, but not quite came to a close today when writer Stella Sacco shared that she had received a private message from Saber Interactive CEO Matthew Karch, who apologized for his hurtful comments to the press regarding her employment and capabilities.

In a separate post on LinkedIn, Karch reflected on the controversy and seemingly alluded to his personal contact with Sacco. But he also couldn’t resist taking a swipe at Portal writer Chet Faliszek, who has publicly criticized Karch for his actions—most notably in the form of a 26-minute vlog on YouTube.



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