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Hello, friend @umphon! I think it's about the subscribers number and account reputation (your is 43,mine is 59), it affects the "visibility" of your posts. Plus you have specific content, not everyone understands ;-). Well, promotion, I actively advertise my blog on other steemit blogs. Good luck, work hard and the result will come!

I don't get what you mean by me having specific content

there's nothing wrong with your content, but now more and more people are interested in cryptocurrency. you can see it in the comments.

I answered but I'm afraid of flagging

No one is flagging, Pls if u have any contribution you are free to share