I try to answer my own question about "if I post on eSteem app will it reflect to HIVE Blockchain".
With one thing in mind, answering my own question I run a test a few minutes ago. I write a post using eSteem app and published it.
The result, it reflect on STEEM Blockchain only. Oh my old home with bad neighborhood.
I have not even tried, it will take patience to adjust the platform. Cheers @cloudspyder