Using classic Outlook for Windows in business environments
No doubt they got tired of people complaining.
They've already proved beyond any doubt that they are excessively belligerent, pompous, and incompetent. I am an Office 365 customer, and I assure you, they are goosing me along with everyone else.
Next move? Probably deleting these "support" forums.
Take note that our thread was quiet for a few days. As several of us have mentioned already, they are simply waiting for us to roll over and die.
The idea to stir up some publicity about this is a good one, with "this" being defined as the total lack of response on the "support forum", via the now-removed "feedback" link, and Twitter. If we are able to generate some bad publicity, they may step up their game and provide us with useless canned responses instead of totally ignoring us.
In the meantime, get yourself a Mac, Chromebook, or a Linux machine, and start planning to migrate your e-mail from Microsoft.