You are allowed to read others code to learn from it, regardless of any license being accepted offered or rejected. You must do so witin fair use, which is for

You are allowed to read others code to learn from it, regardless of any license being accepted offered or rejected. You must do so witin fair use, which is for a court to decide, based on individual case factors. Saying an LLM violates an atrribution requirement is a bad legal argument.