You, as a Reddit Moderator can block the option to publish comments or replies by any user. You can enable this option from Engagement Dashboards as well as Rule Engine.

Steps To Lock / Unlock Comments/Replies by Users on Messages on Reddit

1. To lock a modmail, you're required to create a Reddit Column within the Engagement Dashboards. For more information, see Create Reddit Columns.

2. Once the Reddit column is created, hover over the Options icon and select Lock.

   When you select Lock for the Reddit column on the Engagement Dashboards, no user can publish replies or comments.

Steps To Lock / Unlock Comments/Replies by Users on Messages on Reddit from Rule Engine

1. Click the New Tab icon . Under Governance Console, click Rule Engine within Collaborate.

2. Under Conditions Applies To The properties of the Message, select Is Locked as the Condition. Select Yes to lock replies and No to unlock replies/comments. Or, Under Actions to Change properties of Message, select Lock Message as the Action.