since we are missing the main question i edited the topic
thump up is equal to
like or
up votelol since people started to argue on what is a thumps up i thought to replace it with another familiar name which is " like" or up vote so people may discuss the idea
and i have to say that this guy pointed to a good utility of an up vote button
Or are you talking about the "thumbs up" / up vote feature we see on Reddit, so that only the most community-voted posts are seen at the top of the thread? That's a solid idea to complement the merit system because the threads shown on the first page are more likely to be read and thus more likely to get considered for a merit point.