How do I insert a comment?

Easy! As you long as you have not yet commented on a particular forum/weblink/article page etc..., you will see the "add new comment" link found near the bottom of the screen, in the InfoBox. To add a comment, just click on that link. Once you're done, hit "submit"! That's all there is to it!

Tip: click on the (quoted) link instead and your comment will contain a "summary" of the contents of the page that you are commenting on.

Once you have created a comment, it will appear in a yellow box, just like this:

You can edit your own comments by using the "edit" link or reply to another person's comments' by selecting the "reply" link.

What 's the use of the "comment usefulness" bar?