[DylanDmitri]

Teams isn't going to directly take market share from Slack, but it forms a hard barrier limiting Slack's future growth. Large established organizations are switching to Teams, and finding it good enough that they'll never want to pay for Slack.

[Slimbo]

Teams is absolutely taking share from Slack. As chat permeates organisations, it needs policies, single sign on, oversight and standards that are harder to implement in slack than Teams/Office 365. I know of many organisations who've been forced off slack because 'company policy'.

[calvinmorrison]

Never underestimate the power of workplace bureaucracy. At organizational size X, integrating with new Microsoft product Y, single sign on working and easy deploys to all office machines, support from Microsoft and Microsoft lackeys pitching new ideas to IT people, of course they're gonna pick teams.

[rchaud]

One man's "workplace bureaucracy" is another man's "it just works".

To everybody who isn't a software developer and will likely never need Jira integrations and Slackbots, Slack is just another chat app.

For a paid software, Slack needs to win those people over too.

[bradstewart]

> integrating with new Microsoft product Y, single sign on working and easy deploys to all office machines, support from Microsoft

Those sound more like great features than "workplace bureaucracy".