They can't be bothered to allow opt-outs (https://news.ycombinator.com/item?id=39771318) or even attempt to check if code they're archiving is freely licensed (https://www.softwareheritage.org/faq/#25_Is_the_code_checked...)
It's like Common Crawl, another non-commerical mass scraping project just benevolently stealing creations for "AI" companies.