I am a launch day switch buyer that has never once dropped or mistreated my console however I now have a hideous crack on my console near the screw pressure point. I am extremely disappointed!
Mine is the same, sent it off to nintendo late last year, wanted me to pay £279, so they would fix it. sent it back the other day remembering I have insurance lol.
I think that one reason to provoque this caracking is due playing in handheld mode most of the time without any type of protective case. You need to use both hands for playing it, but, in the other way you're like pressing the console which is in the middle. Just a theory...
It's not her fault, guys.. If your switch is still fine then that's great, but this apparently a known issue that can happen whether you've ever dropped it or not