To tag along with this, I remember this becoming an issue 10 or 15 years ago and a lot of the big lyrics websites were forced to reach licensing agreements with the songwriting groups like ASCAP and BMI (they collect and distribute royalties on behalf of the writers). I think a couple sites tried going to court to claim fair use but lost pretty quickly. That’s pretty established law going back to the earliest days of music publishing. Just because they were publishing online instead of printing up songbooks doesn’t mean the laws change.