EH failed because when you abort a baby, it tends to die. 

RPG staff literally abandoned it as soon as they put it out there. Then they fed into whiny hate threads created by people who were just jealous it had a prominent place on the site. Instead of making that place less prominent, RPG staff threatened the dozen+ people still RPing in EH with the deletion of all their content. Nobody is going to RP under those conditions. So yeah, of course everyone who was there and putting in an effort to make it work just gave up.

So you want some advice on how to make your SW PW work? Don't engage in petty politics and actually take the time to nurture the damn thing.