[Janet]

The Thanks button is a nice way to show agreement or appreciation for a good post.

Each time you click the thumbs up icon (located in each post), the author of the post receives a point. You have the opportunity to leave a comment as well, which the post author can read.

You can access your own thanks comments in your user cp (click on user cp on the upper nav bar) and the last 30 or so will be displayed in the center section of the page under "Latest Thanks received" You can also see stats about how many times you've been thanked.

There is a meter in your public profile viewable by others, that also conveys information about the number of times you've been thanked.