Thank you very much for your clarification and I much appreciate for your kind concern on this matter....

If it is the case, then the system could be fixed about the problem and find best solution on the matter.

But, the main point that I feel upset is that it is "robot" that downvoted my posts and other posts....and not human at all.

From my own experience in the past, I received downvote from the keyman of Steemit (one of a developer), at that time my reward downvote from approx. $30 to apporx. $ 10, but I accepted his downvote because he gave me his reason and I replied to him that I respected his opinion! But this time, it's only a robot who did it without reading the articles...... this point that I feel upset.

And if the system could be fixed and proof that those accounts are from each person (human and not robot). I'm still happy if everyone is equal.

Anyway, I will stay and see what happens next..... Thanks so much for your kindness!