At first look i saw this tittle and i thought you will told how you doubled your coins. But no, whats going on here, i didnt see that scam anywhere till now. Its really bad for the platform. Somedays ago a person told me to join a community to get more profit by posting their community, i clicked that link and ask me to log in with steemit username and key via third party website . I closed that tab as soon as possible. We dont have to believe everyone.