[fulafel]

I'd add security to the list of things to address.

Aggregating all of the institutional knowledge of the company to one perpetually searchable global workspace hosted in a US company's shared cloud vulnerable to being downloaded and abused by a global breakin or any compromised employee account is bad.

[calvano915]

I thought much the same. Controlling the custody and flow of information is impossible with tens of thousands of users and pretty much no policies or significant monitoring in place.

[fulafel]

I think centralised control by company IT admins would be more catering to Teams customers than to Slack customers. To keep the attraction and user satisfaction of Slack it needs to be user / team centric. Maybe something federated or sharded like Mastodon or Discord. Might even be possible to distrust the servers and have end2end crypto.