Add a custom message to your comment form on a sitewide and/or per post basis.
The Comment Form Message plugin allows you to add a custom message above or below your WordPress comments form on a sitewide and/or per post/page basis.
You can use it to inform your users about your comments policy, encourage them to subscribe to your blog feed/newsletter, motivate them to comment on your site, advice them to keep comments on topic etc.
The plugin has the following features:
See the FAQ section for usage instructions.