[guardianangel]

I think I have the answer to your last question.

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Here is a short summary.

Make your post attractive

Besides choosing a good topic, making it attractive to your readers is like inviting them to post a comment.

Invite them

Besides your conclusion for your post, you can invite them to post their comments and suggestions in your footnote. A good quote at the end of your post can also attract comments.

Leave them a space

A good post is worth replying for, but if you already discussed each detail then they will have nothing more to comment.

Acknowledge them

Although there is a little chance that they will come back to see your reply, posting a reply is a good attitude. This means you are concern with their comments.

Do not drive them away

Some readers would like to leave a comment but you may be driving them away unintentionally. Avoid requiring them to register or answer a question before they can comment.

Commentators are valid customers, so put yourself in their shoes.

Good luck!