Well love, let me tell you!
The name is the author of the post, and you can click on it to go to their den. The flag is the author's flag.
The 'Lightbringer' 'Darkseeker' or 'Neutral' tells you the author of the post's allignment.
The little envelope you can click on to take you straight to PM the author of the post.
The little green light shows the author of the post is online, if it's grey they're offline.
The number after 'posts' tells you how many posts the author has made.
Below that is the post number. In your image, that says that that was the 801433rd post ever.
Hope this helps.
Spring Month: 3 
Day 
Flood
