While the APIs make it significantly easier to ingest for LLM training, scraping will still work.
Unless they put 100% of content behind a login-gate, it's currently legal* to scrape and use for derivative works, as long as you have the money and the chutzpah to deal with lawsuits that may or may not come.
- https://blog.ericgoldman.org/archives/2022/12/hello-youve-be...