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I scan the network for newbies posts that received little or no reward, and are not too short (that's the easy part) and then I filter them by their use of the English language (that's the really hard part).
Your post got selected because you write good English. My bot read through the text and assumed that since the language seems nice and structured, your content is probably good as well.
Then it rewarded you.
That's it.

That seems nice, thanks for helping. Is there a way I can help too?

I do need help, but unfortunately I don't think it is within your ability.
Just enjoy SteemIt, and write good content!