Protest of this kind is less meaningful. When an organisation such as this is criticised only by anonymous individuals, who are likely to be difficult to contact or learn more about, it is less likely to lead to any kind of long-term meaningful resistance. In the case of Anonymous and the Church of Scientology, there have been no notable acts of resistance to the Church of Scientology other than Anonymous.  Anonymous resistance makes other kinds of resistance less likely to happen, and rarely leads to significant change or action.