What do the little green or black boxes mean??

[Sandy]

I give up. On the top of each post, to the right, some info is given about the poster. Next to the number of posts is either a little green (most are green) or a little black rectangle. If you use your mouse (Kevan is afraid of his mouse) and place the arrow on the box, a message will appear. The green box says that the poster "is on a distinguished road". The black box says the poster "has disabled reputation". What may I ask the stable and intelligent members (or guests) on the forum, do these words possibly mean???

So totally clueless in Maryland