As predicted by doug, a few more capabilities have opened up. Thanks for the access.
Having had almost 24 hours to experience and evaluate the “reputation star,” I would like to learn more about it and refine my thoughts and suggestion. The reputation star, as Btrflyl8e stated, relates to a "reputation" rating” and is marked “add to this poster’s reputation.” While the star permits me to express approval or disapproval, it does not seem to have the same focus or function as "Like this" button available on fordcmaxenergiforum.com/
Unlike the “Like this” button, the star seems to focus more on the poster than on the contents of the post. The “Like this” button focuses on the particular post, rather than on the "reputation" of the poster. (The “Like this” button has no comment section. If the post is long or complex, clicking this button is ambiguous and a separate comment would be required.)
I don’t know if my approval of something, by clicking the star, or a comment I add is available to anyone besides the poster. I appreciate Brianman’s suggestion to sign the star’s comment section (but I forgot to do that). In contrast, the “Like this” button automatically and publicly publishes, directly on the particular post, the screen names of people who have clicked the “Like this” button. It seems to me that the “Like this” button very efficiently fulfills the function of providing “a little direct positive reinforcement” (to the poster and other readers) without unnecessary posts. Is this worth thinking about?