This was definitely a fuckup from Slack but as I've understood it, the "AI training" means that they're able to suggest emoji reactions to messages.
Not sure how to think about this, but here's some additional info from slack: https://slack.engineering/how-we-built-slack-ai-to-be-secure-and-private/
Edit: Just to pick main point from the article:
Slack AI principles to guide us.
- Customer data never leaves Slack.
- We do not train large language models (LLMs) on customer data.
- Slack AI only operates on the data that the user can already see.
- Slack AI upholds all of Slack’s enterprise-grade security and compliance requirements.
Yeah, an incorrect cleaning procedure can cause a error that requires maintenance personnel to reset the error. They don't need to do anything else though, it's completely fine to just do the cleaning again. Stuff like that.