Another great post Paul. I have also written about commenting in the post and use the plugin CommentLuv to encourage great comments. Its pretty cool as you can select an article from your recent posts and select that to show at the end of the comment as an. this person wrote xyz. Its a good way of rewarding great comments and puts a bit more interest into the comments section as the native WordPress comments are not that exciting, but then do they need to be. One of the rules you should have when writing comments is always add some value, an opinion. an idea, something that gets that comment published and you should at least then get a visit from the articles author and views from genuine readers of the article.