Why not? We know know that most users are not going to check the code on github. I'm not going to waste my time checking that code either to see if what you're saying is true. Besides, what's even the point of this service you've created when I can do the exact same thing using steemit anyway?

Here's are the facts:

* you've created a service which simply reproduces existing functionality of steemit,
* you're asking for peoples active keys in order to use this service,
* you're charging a fee to use this service, and
* you're basically an unknown entity in the community.

Not throwing around the private keys that control the funds in your wallets in cryptocurrency security 101.