The issues between Wikileaks and Anonymous go back to the financial problems forced upon Wikileaks after its finances were cut off. In order to continue functioning, Wikileaks had to begin to demand payment. This in turn added liabilities to Wikileaks and its supporters. Facing the added pressure, and the proven liability of the single target to focus efforts against the access of information, Anonymous took the same approach as taken several times before: decentralize. So began Anonymous's "Project Mayhem" which has produced TYLER:
Now instead of a single target, every single machine connected to Tyler will become a hub. Millions of machines, all churning over and handling the data. It is a nightmare scenario for any group or agency seeking to hide its secrets. No longer will there be a large rat to target, but millions of scurrying cockroaches, any single survivor enabling the reconstruction of the entire network. http://www.addictinginfo.org/2012/12/10/anonymous-announces-wikileaks-alternative/