Please don't do unserious answers, or at least add a disclaimer before it and make sure the question has been answered seriously prior to that.
My question:
Is it normal using cutlery always hurts? Every single time I use knife, fork of spoon for anything else but scooping something soft, it hurts. It's been like this my entire life. Are people really in pain every time they eat without anyone speaking of it????
It's supposed to be good for you spine if you do it right. I think the idea is that if it breath into your stomach with your abs slightly tensed, you create pressure, which "takes the weight off" your vertebrae, which helps to keep those joints healthy. It's explained in Becoming a Supple Leopard and iirc in Starting Strength. But the other trick with posture is to keep moving and keeping shifting; doing hold stress positions all the time – everything needs to rest.