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Quick look of it, shows that you guys put some effort organizing github, any particular reason on choice of Polymer?! I have heard good and bad things about Polymer but have never fully engaged with it to create project. Glad to see it in action and will follow closely where you will take it ;)

Polymer is quit simple to use and extend, in particular by its compatibility with web components. The set of component available with it is just amazing.
Glad to see you having taken a look at the Github page :)

it's a fork of eSteem ?

Nope, just a name fork ;)

eSteem8= estimate ?
estimate how much attention you will get!

Yes, we'll see