You might have a biased sample of Clojurists, in my vicinity ~50% use Cursive.
Not sure where you get the disrepair part, Cursive is alive and well and seems to be a sustainable business for the author, and Calva also seems to do be doing well.
It's true that there have been various open source IDE efforts that are dead now (Counterclockwise for Eclipse went the way of Eclipse, Lighttable and Nightcode were probably a bit too experimental / radical)
Not sure where you get the disrepair part, Cursive is alive and well and seems to be a sustainable business for the author, and Calva also seems to do be doing well.
It's true that there have been various open source IDE efforts that are dead now (Counterclockwise for Eclipse went the way of Eclipse, Lighttable and Nightcode were probably a bit too experimental / radical)