Uncle Ben, Chavakuk refers to people who don’t belong to a single chassidus but instead focus on studying Breslov and Chabad chassidus, as well as the teachings of Rav Kook. (Sometimes people include Carlebach in there too.) Popular among some dati leumi in the West Bank. Similar to “neo-chassidus” discussed recently among ba’alei teshuvah in the US.
Avi K, Rebbe Nachman never claimed to be moshiach or greater than Moshe Rabbeinu. People accused him of saying things he never said. At first he had a lot of opposition but for the last few generations Breslovers have been accepted as mainstream charedi Jews.
Breslov is less centralized than other groups because Rebbe Nachman didn’t believe in hereditary rebbes. So there are a number of groups. All are basically normal frum Jews, though one (very visible but small in numbers, probably less than 1% of Breslovers) group is a bit different…