[absherwin]

Of course the customer can say that. And nowhere does Patrick suggest that taking his advice is a condition of continuing a relationship with Stripe. That's not the issue.

The issue is that coordinating pricing is illegal in any form. In any industry, each company could make more money if they knew their competitors would raise prices. Even calling a competitor to tell them that you are raising prices is illegal if they raise prices.

If there's even a single incident of two companies being advised to raise prices on products which compete with each other, it's about as close as it comes to an open and shut price fixing case. And this post makes it easier to prove because it suggests that companies know he's giving the same advice to their competitors. Whether that's said explicitly or not won't matter.