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O so it turns out ...
So what if I do not have to choose any proxy whether it will have a bad effect on my blog account?

No. Not directly. Effectively you just let others chose for you.
You can be either one of those responsible and conscious Steem users, or one of those who have no idea how the platform works and doesn't care about its reliability and security.

Thank you @gtg for explanation ,, i start to understand clearly now ....