...only 40% have changed their name?
And yet 70% have hosted a server?
Strange
If you transfer your Blockland over to the steam version then your pre-existing name stays. So for a lot of people there's no need to change their name, so they don't get the achievement.
The 40% are new purchases, and those Steam converts who have since changed names.
The 60% are Steam converts who kept their name, and a small amount of new purchases who still go about as Blockhead#.
