The last couple of versions presented here were source only and not a precompiled and working binary application. That is what caused the problems for the previous posters. This version, 2.2.5, is a ready to use application and works fine. To answer the question "who uses this network?" let's just say a whole lot of people, which is what makes it such a rich source of material. I have only two minor complaints. One, that it can get a little out of control if the active queue is too big, but I may be abusing it a little bit, not really wanting to babysit it. It would be nice if it had a little more developed queue control, although it may be that the nature of this network and protocol makes this somewhat of an inherent weakness. My second little complaint is that the whole interface locks during searches, which sometimes take a little while when using Kad. Not a big deal, but is always disconcerting.