Uber has been embroiled in a PR fiasco since a BuzzFeed story this week revealed than an executive had floated the idea that the company should hire opposition researchers to look into the personal lives of journalists critical of the company.

Emil Michael, Uber's senior vice president of business, reportedly suggested that the company could look into the personal life of Sarah Lacy, the founder and editor of Silicon Valley site PandoDaily. Lacy and her publication have had a particularly adversarial relationship with Uber. Last month, Lacy wrote that she had deleted the app and encouraged others to do so after reports of a French Uber promotion that offered to pair riders with "hot chick" drivers.

The company insists that Michael's comments didn't reflect its actual practices, and he has apologized to Lacy. Uber chief executive Travis Kalanick called the comments "terrible" in a series of tweets.

But now Uber investor Ashton Kutcher, of "Dude, Where's My Car" fame, has come out in support of Michael's original statements — and implied that Lacy is "shady."

Kutcher's actually a pretty significant Silicon Valley investing force, co-founding venture capital firm A-Grade Investments, which has backed Uber, Airbnb, Spotify and others. He also was hired as a "product engineer" by hardware maker Lenovo in 2013 — helping design and market their tablet.

In follow-up tweets, Kutcher clarified that he speaks only for himself, not Uber — and doubled down on a need for "questioning the source" of reporting.