How to make a quality comment!

How to make a quality blog post and a comment. And to be in a group and do a blog post. We learnt to make sure that when you do a comment that it has to be 1. Positive 2. Thoughtful And 3. Helpful. And that when you share your personal information that it is not just one person looking at it,it is everyone who goes on their blog!

What do you think a quality blog post is?