This setting controls who may comment on your site. There are three choices:

• Anyone
• Authenticated commenters only
• No one.

Anyone and No one are self-explanatory except that the latter effectively disables commenting on the blog. If you are using the new template structure introduced in Movable Type 3.2, a rebuild of the Index templates will also remove the comment form from all of your individual entries. If not, you must rebuild all Individual archives to remove the comment form.

Autheticated commenters allows only commenters authenticated through the TypeKey service (or another TypeKey-compatible service if you have set one up). This option requires enabling TypeKey on your weblog in the option below entitled Authentication Status.