I swear 70% of my value at work is pointing out details like this during meetings when no one else will… before we build it.

In this particular issue, MS has an opposite problem: you grab a document link, grant a permission to someone, and they still can't access the document through the original link (you need to fetch a new link just for them).

Product managers will decide to show the thumbnail in situations because it results in more click throughs. In many cases they'll have done their research to know that many customers take steps to restrict what they share (think profitable but conservative companies) but will choose to show the thumbnails anyway.

Some customers will push back and have enough leverage to get an exception, but the default answer will be that this can't be disabled. You'll have some sales engineer challenged about the product behavior as part of an RFP and they'll try to convince you that nothing is leaked while knowing the financial opportunity would be much larger with these customers, if there was more concern for the customer.

Really? That’s very surprising. You can see what this says? https://docs.google.com/document/d/1uYM0vyZiDJbo-5mXmU_6Xtrz...