SE has intentionally disabled the data dump. And the CEO has stated to the press that he plans to charge AI companies for access to the data.
Given these developments I think it is almost inevitable to expect more restrictions on data access, as just disabling the data dump is unlikely to stop AI companies from getting the data. Twitter and Reddit are other prominent examples that added very expensive API access, likely with very similar motivations as the Stack Overflow CEO showed in his statements.
But all these restrictions don't just affect the AI giants or other commercial entities, they affect everyone that wants to do something with this data the community generated.
This will affect everyone analyzing the data for academic purposes, or just for fun. It will affect the users that created moderation tools on top of the AI or SEDE. And it will make it much harder to make use of our rights under the CC license to take the content and create something else with it.
Is SE going to stop providing API access for free, or limit the free access in any way?