muzani
a day ago
1. Yes, but it's hard to prove. There are active lawsuits. Some of it has been under "fair use" but at the billion dollar scale, you have to really ask whether it's fair. Also anecdotally, an author friend lamented that her publisher sold the legal rights to use it... it was all perfectly legal but many authors do not agree to this.
2. This is harder as a lot of them don't disclose training sets.