Slack is not the only provider with opt-out AI training (subrosa.ai)

massive cookie banner asking for your opt-in for data, on an ad about protecting your data.

not the worst look. also not the best.

If I encounter any software or service that uses opt-out rather than opt-in for important stuff like this, I will always opt out by ceasing to use that software or service. I am no longer willing to put up with companies that engage in such a level of disrespect.

This is doubly true if the company requires you send send an email to opt out, like Slack does.

Making opt-out option only available through email sounds unprofessional, especially international players like Slack.