1. Slack, the popular workplace communication platform, has faced backlash from users over its decision to enable AI training on users' chat messages by default. The company argues that this feature, which allows Slack to use the content of users' messages to improve its AI models, is opt-in by default to make it easier for users to participate and benefit from the technology.

2. Critics have raised concerns about the privacy implications of this feature, arguing that users should have more control over their data and that Slack should not be able to use their messages for AI training without explicit consent. Slack has stated that users can opt-out of the feature, but some users feel that the default opt-in approach is misleading and undermines user autonomy.

3. The debate over Slack's AI training feature highlights the broader challenges of balancing the potential benefits of AI-powered technologies with the need to protect user privacy and data rights. As AI continues to be integrated into various online services, there are likely to be ongoing discussions about the appropriate level of user control and transparency around the use of personal data for AI development.