If posted to a public forum like this one, non-commercial usage is obviously required. On the biggest (i.e., for-profit) social platforms, commercial use is also required (if I'm understanding those terms correctly, at least).
There is stuff publicly available online that has restrictions on commercial use. Because I'd rather see how open source AI generation goes, I'd prefer to have non-commercial efforts get that sweet data without giving it to the major tech companies.
I'd like to see a search engine that has a setting to just search forums. Organic user generated content is where most of the valuable information is, at least for troubleshooting/ product recommendations/ hobbies.