As an early user of SO, I certainly don't want my answers sold for profit again and again.
Cc-by-sa has had a few revisions.
Attribution would be lost in an llm, no?
Specific licensing and side deals is different to me at least than scraping.
If you want to contribute to the commons, contribute to the commons. If you want to contribute to the commons without commercialization of your work, contribute with some non-com license [1]. If you want to feed a corporation with your labour, post on SO.
[1] It'll still be illegally scraped and commercialized by some AIBro, and you'll have no proof or recourse against them...
Licensing also means the writer retains the ownership.
Cc-by-sa has had a few revisions too.