I don't know; I think the exact legal status of copyright and training is still unclear at this moment. OpenAI claims it's all "fair use"; others disagree. Thus

I don't know; I think the exact legal status of copyright and training is still unclear at this moment. OpenAI claims it's all "fair use"; others disagree. Thus far it's untested in court AFAIK, although there's some procedures on-going. I'm not defending Stack Overflow and/or OpenAI here; I also pretty much stopped all my contributions for various reasons. I'm just saying it's fine for them to have reasonable protections against sour grape deletions, and that GDPR has nothing to say about this.