Amazon deliberately deleted messages to hide dodgy business practices:

The FTC also alleges that Amazon tried to impede its investigation into the company’s business practices. “Amazon executives systematically and intentionally deleted internal communications using the ‘disappearing message’ feature of the Signal messaging app. Amazon prejudicially destroyed more than two years’ worth of such communications—from June 2019 to at least early 2022—despite Plaintiffs’ instructing Amazon not to do so.”

And the answer to the headline is, of course, “anyone that’s been paying attention.