Well, some people think about it the other way.
If u realy want ure accaunt not be hacked, most of the people who wasted over 100 - 200 dollar/euro/... wil do this, i bet some other will do it to.
They just want to give u extra protection against hackers and scammers.
I wont do it to becouse i don't want to wast all my time to check my emails.xD
This isn't supposed to be a bad comment but i just wanted to tell this.
Cya and have fun.