People try and see what works for them. I use oil pulling because it's better than toothpaste. Ever since I started oil pulling my dentist is just going wow and saying I see you are brushing better. Well that can mean only one thing.
If it has cured some people of cancer eczema etc. Then that's just great. Not everything will work for everyone. Everyone is different.
and it is good to be skeptical. always be skeptical