Poloinex Steem unable to deposit/withdrawal

Of course, this can be very very manipulative, but let us assume that this is not the case. Let's say that all participants are fairly playing the game. When having this on mind, have one more thing in mind:

When iPhone came out, demanding for mobile data was so highly increasing , that AT&T had to upgrade it's whole infrastructure. Such a tiny device brought large scale volume.

Familiar? :)

share your thoughts on Poloinex as a exchange: realiable, unrealiable, good or bad?