My conclusion is that there really is no reason to be in Uman. It is not just the kelipa of insanity around the ziun itself. It is that it does not seem like the biggest deal in the first place. It does have the effect of getting people away from Gemara and it does not seem worth it. It does not seem like one gets that much benefit from the whole thing or as much as one loses by dropping out of the yeshiva world. It might save from worse kelipot but besides that I don't know.
It is not that Reb Nachman did not have some good ideas. Rather there is just too much cult activity involved. And it seems to me that it entices people away from the straight Lithuanian yeshiva path . And from what I have seen over the years this is universal. No one ever becomes a better person from involvement with it. If anything I think it takes people from otherwise decent things they are doing and tends to degrade them. The ideas themselves of Reb Nachman I tend to think highly of but then people hear about them and get involved with Breslov and that changes them. I have tried to mention some of these issues to people but my impression is it is beyond redemption.