I don't know how long have you had this feature on your website, but i've just noticed it today. It allows me to read only the comments from the post writers. now i'm reading this http://ppantip.com/topic/30670128/story and it makes my life much easier to read just what i want to read. I can finish reading one long post without troubling throught hundreds of comments which sometime is not helpful.

Thank you again. I just think i should let you know.