Well, Community features is "RTB Turf" and this certainly falls under that category. I've got two types of image/badge in the pipeline - one is for server hosters which comes in two sizes. One displays extended information about add-ons, players, admin presence and the other just shows the basic map/using rtb/bricks etc.
Then there will be badges for your average user which shows what server they're on, their playtime, and a few neat statistics that RTB collects about players such as total Blockland playtime, add-ons downloaded etc.