By disabling comments the moderator can bar any user from commenting on an idea. It is the moderator's right to decide if commenting should be allowed/disallowed on an idea. By default comments are allowed on an idea however, the moderator, from the front end can disable comments on an idea. A standard user will not see the "Comment" tab on the idea page.
STEPS TO DISABLE COMMENTS
1. Click on the More button for the idea for which the comment is to be disabled.
2. Click on the Disable Commenting button
A message will show at the top of the screen confirming that commenting has been disabled.
Now if a member navigates to the idea details page, the comment input box will not be visible nor the comment icon beside Subscribe to the idea (star) and More (3 dots) though previous comments will continue to appear.
HOW TO DISABLE COMMENTS ON CAMPAIGN
Community Administrator can disable commenting for a specific campaign from Campaign >> (Select Campaign) Edit >> Role and Permissions tab >> Submit Comment (toggle) and hit Save button.
HOW TO DISABLE COMMENTS ON FUNNEL
The community administrator can disable commenting on the Ideate stage, this can be achieved from Campaign >> Edit Campaign >> Workflow tab >> >> Ideate Stage >> Settings >> Enable Commenting (Uncheck )and hit Save button.
Note: Commenting can be enabled/disabled only on the Ideate Stage when it comes to Funnels.