That happened to me when I was brand new. I commented on a gardening post. Quick little comment that said- Good job. You're a natural. He came back and asked me- Do you garden? Then I said Yes- and went on to share with him my favorite Square Foot gardening book and stories. etc... He then informed me about the short comment vote farmers and for me to avoid looking like them when I comment. Told me not to be shy. To this day- I thank him for teaching me about that.
Take care! :)