Thoughtful Comments
Thoughtful comments on a subject of the post may benefit your blog in more ways than one. If your comment is well-written the blog owner will follow it keenly. Adding questions in comments may enhance the post and start a longer discussion which will lead to clarification of the main subject. Your comments will also add quality back links to your blog which in turn will make your blog more visible on search engines. By adding comments bloggers feel encouraged to continue with their writing. On the other hand authors of nuisance comments know what they are doing. And their strategy never goes a long way, since they will be ignored at best or simply deleted and forgotten.