@exyle,
This is a valuable thing to most of STEEMIANs! They are just using Master Key to logging to every app built top of STEEM blockchain and some how they used it with spams! If they follow what you said today, atleast they can secure their accounts! Specially STEEM is based on Proof of Brian (PoB) concept! So, we must secure your hard earnings from scammers!

Cheers~