You are absolutely right @suesa. I am confronted with all these types of comments everyday day. People should read and understand the article before commenting on a post. Some common example of comments that i think you have come across on steemit are " Nice post" , "Great post, keep it up", "Beautiful pic or nice photos". These people are not adding any value to the post of the owner of the article by sharing their ideas or views on the content of the post while acting like that.