If the "Secret Question" is one of the reasons why accounts are being hacked, then why is it still there? More people will get confused whether they will use it or not. 
AFAIK, the "Secret Question" actually locks your account. So I don't think it's one of the major reasons why many accounts are getting hacked. My guess is that most people are getting hacked because they are using the same password in other websites - e.g ICO related websites/dashboards, which is even worse - or because their computer are infected. I've never seen a tech-savvy user getting hacked here.Mine got hacked by my "Secret Question" .
It didn't.For reference: PSA: ACCOUNTS WILL BE LOCKED IF THE SECRET QUESTION IS USED TO RECOVER IT