Bothered by unacceptable commentaries in your blog? And desirous of elevating the civility and relevance levels of comments in your blogsite?
Instead of completely eliminating the comments option, maybe comment moderation is the answer.
Here's one personally recommended as a model to follow, extracted completely from Donald Sensing's blog, One Hand Clapping:
Commenting is provided as a courtesy only. I review all comments before they appear. I do not edit comments, I only approve or delete. My criteria for approving or deleting generally correspond to the following guidelines but in the end are subjective.
Comments using profanity automatically get tossed into the bit bucket - I never see them and neither does anyone else.
No personal attacks, name calling or commercial commenting. Links to your own blog site or relevant other web pages are fine.
Please be brief and relevant to the post.
I rarely answer comments, I just don't have the time.
Many high-traffic blogs, especially those that are essentially one-man operations, inundated daily with hundreds (or thousands) of comments, of course, will find this solution quite burdensome and tiresome.
But there are enough blogs out there whose traffic levels will allow the hosts to have time to permit moderation.
Will the desired or desirable effects of moderation be reason enough to try it to improve the tenor and civility in the blogosphere?