The Mycroft project has a better approach to this: "Mycroft uses opt-in privacy. This means we will only record what you say to Mycroft with your explicit perm

The Mycroft project has a better approach to this: "Mycroft uses opt-in privacy. This means we will only record what you say to Mycroft with your explicit permission. Don’t want us to record your voice? No problem! If you’d like us to help Mycroft become more accurate, you can opt in to have your voice anonymously recorded." (project is open source, at https://mycroft.ai/ https://mycroft.ai/) Let people participate in R&D if they want to, but don't force it.