Yeah, cancer's a tough nut to crack, that's for sure. Not easy on anyone.
Also, you absolutely CAN fool a lot of people like that. It's not as hard as you'd think. And as someone who's lived a life with multiple diseases, this "only know what you can find on the internet" is somewhat insulting. I'd be more insulted if I knew you were aware of my life, so I'm gonna keep it on a small level and inform you that you don't know my life and you shouldn't pretend like you do. I don't know what perspective you're coming from, but to say something simply to "give someone hope" that their illness might be cured by spreading non-truths is... Well, in my opinion, amoral. Whatever though, I've said my deal, I'll shut up now.