I realize that the dash is experimenting with different like/dis-like text, so I will save most of my comments for when it is done. Just a thought though, too much clutter under the avatar is distracting and not needed, in my opinion.
Just a couple of suggestions:
If it is inevitable that some of the 'being tested' features will find their way onto the forum, I think a good and simple idea would be a thumbs up or down button option for each post. A simple thumb up or a thumb down icon with a 'counter' next to it. This could be placed underneath the signature by the edit/quote/multi-quote buttons. Simple and effective way to anonymously recognize a good post.
Also, under the avatar, a total count of how many times each member has posted a useful/helpful post, as indicated by his total thumb up/down count for all of his posts.
Simple and effective.
thumb up/down icons - Google Search
^ I like the 5th and 15th selections, on this page.
Just some thoughts