alt Hacker Newsbuilding new features on top of E2EE is genuinely hard, and I've seen many companies struggle to keep innovating while staying strictly E2EE.
Having seen multiple leading messaging/VoIP stacks from inside, the amount of engineering spent to work around various limitations of E2EE in real prod scenarios is insane, and even for simple every-day-use features metrics don't compare to the metrics of the same feature running without E2EE.
Then a more reasonable response is: “we cannot as effectively monetize all of the data in our advertising platform disguised as another tool entirely unless we disable E2EE and we need to be able to allow not only ourselves but others to invade your privacy even more than we already do because it’s technologically difficult to do so when we encrypt your communications.”