I wouldn't run Exchange either.

But firstly, it's a legitimate choice for normies who just want to run a business, and second, as I said, the criticisms this article brings would be applicable to any other big tech provider who is laying off staff and leaning heavily into LLMs.

It's not possible to just run your own email server anymore. You can try, but nobody will interact with it, no matter how long or how hard you work to build your reputation. Fastmail still goes to spam, and they're very large and dedicated. It's hopeless. You use one of the big five or so providers, or you're simply done.