Remove the website field from the comment form and also remove some other rarely used profile fields (AIM, Jabber, Bio...)
Do you know why your posts are not getting any comments? It's probably because of the website input field in the comment form.
My personal experience: the number of comments increased dramatically after I removed that website field.
In addition to removing the website field from the comments form, the plugin removes these fields from the profile page:
Once installed, all the fields & sections mentioned above will no longer be available to users.