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I believe your rep goes down if someone downvotes your content, also I believe the impact is larger when that person has more rep than you. But don't sweat it, just hang out here and contribute with nice content and your rep will go up for sure :)

"also I believe the impact is larger when that person has more rep than you"

Haha, poor @wang, I just checked he is at an -8 which is the lowest I've seen so far.

a similar situation

I think Steemit is being attacked by bots, and we are cheap accounts, so we get confused with the bots, Steemit punished us for no reason. Bad >:(

How to save my blog : ( ( I can not publish and vote ( god

you have many flags

Isn't it obvious? You've been flagged several times for tag spamming.
And you continue doing that - or can you explain why this post should be visible under "news" or "security" or "blockchain"?