If you are not followed by the blog you are commenting on, your reply will require approval. Pending replies can be viewed by anyone, but they require an extra click to view. In All Replies view, the Show Pending button must be clicked before these replies are shown.
Pending replies are clearly marked as pending, in addition to having a light grey text color. Approved replies have black text.
If you've chosen to show pending replies and no longer wish to view them, click the Hide Pending button.
Pending replies are approved by being recommended or replied to by the author or a member of the community who is followed by the blog. If you're followed by the blog you're posting a reply to then your replies will be approved and will immediately appear in All Replies view, outside of the pending filter.
Images in pending are not visible by default, instead appearing as blurred and monochrome. Hover your mouse over the image to show a Click to Reveal message. Once clicked, the image will be shown in full clarity and full color.