Microsoft already did a rug pull on me and opted me in to training months after I signed up with Github Copilot. It exhausting and ultimately futile to monitor these companies.
It's not guaranteed that Duck.ai will continue to uphold its promise of not training on your sessions — if the company gets bought by Microsoft, it's only a matter of time before the switch to "you can opt out at any time". But since privacy is Duck.ai's brand, it will be somewhat harder for them to hide what they're doing should they betray their customers.
I also don't actually trust that Duck.ai sub-vendors OpenAI and Anthropic will uphold whatever contract they have with Duck.ai — the whole AI business model is built on lawless consumption of others work.
We'll ultimately have to run our own models locally, because it's impractical to defend against untrustworthy AI vendors.