I think (and this is total subjective speculation) one of the problems is that Arc is so beautiful in its simplicity that the sort of people attracted to it thi

I think (and this is total subjective speculation) one of the problems is that Arc is so beautiful in its simplicity that the sort of people attracted to it think "man that looks like fun to implement, I think I will work on a lua/js/python/jvm port! then it will REALLY take off" instead of building things (apps, tools, libraries) WITH it.