Board Thread:Support Requests - Getting Technical/@comment-30333252-20150722235322/@comment-5558012-20150723014845

When you state "comments" you mean blog and article comments. At this time it's not possible to delete these comments without being an Admin though this is something Staff were going to look into when they created the Moderator group (article comments were created differently than forum and message wall comments). You can always send feedback to see if there are still plans to pursue this idea.