For a large number of smaller websites, we recommend closing off comments because of the amount of comment spam on WordPress. Usually unless you are a big B2C website or daily news, we don’t see any comments on websites, so its best to close off comments. We find that the effort required to filter through the comments is not worth the time to find the 1 comment once a month. Instead of comments we recommend having your contact us forms on key pages.
Please be advised that even though comments are closed site wide, you can enforce some pages/posts to have comments functionality. Please reach out to us on instructions on how to enable comments for specific pages/posts.