[smm2000]

Slack is a 2.8B dollar company and not a small scrappy startup anymore. They can handle all the hate in the world and should not get a pass for sleazy behavior (the same is true for Microsoft, Google or Exxon). Not putting max number of users on website or in documentation is not fair to customers.

[vsl]

Did you consider the possibility that it's a technical limit that they didn't even anticipate ever hitting in real life, because Slack is for small teams?

Let's be fair here: the 10k visible messages limit means that Slack is basically unusable when you hit the user limit, as this post also says (messages archived within minutes of appearing). The pricing is clearly insane with this amount of users too.