As the world was designed to be harder then others, it was meant to have only experienced players (i.e Hero's from other worlds).
Because it is a difficult world player come and go on a regular basis, but with it's 3 year anniversary around the corner it shows it still has several interested & loyal players.
Recent revolt last year against the idea of adding world wonders and ending this world proves this.
Hero worlds do not have Heroes.
But they've had the six gods (Artemis), the extended buildings and research options before any of the other servers had them.
So basically they have had all the goodies found on new servers for quite some time.
There are is no defined victory condition on the Hero Worlds, as a result they do not see this sudden loss of interest that
kills all the other servers: after the WWs have been build, players loose interest and leave until eventually the server is shut down.
So if you want to commit to a server for a longer period of time, try a Hero Server. Battles here are epic because players have more cities and more troops.