If the brightness of the patterns is similar, changing the shade slightly to blue, or still letting it go black when a person is afk could sort the first problem, regarding the information, I don't think it would be a problem if the shading is correct. Alternatively, there could be a stroke around the nametag which indicates the status, for e.g. a red stroke indicating the person is mapping, and a white stroke which indicates the person is playing
there's also the option of making the "name tag collection" have kinda unique shading aswell, like:
if it was that Vine tag you showed, what if the VINES varied in colours.
or if it was a nice hill view scene, and it was daylight, and it could change to like noon, nighttime or sunset or similar.
if it was a face (Peppy fanart x3) it could change face expressions?
well, since it may be confusing if you don't know all differs in skins... it may not be a good idea, but I thought sharing it isn't bad either ^-^