When culturally christian athiests talk about "organized religion" vs "unorganized religion" they are usually just trying to sus out whether there are harmful cult dynamics at play and lack the vocabulary or willfully delude themselves based on prejudices. Cult dynamics can be present within any group, religion or not. The distinction is largely constructed and explored to satisfy a secular distaste of anything too foreign or immaterial (non-secular) instead of genuine concern for others. Believe it or not, many groups of people, by virtue of being grouped together, are "organized" to do so, and the distinction is largely meaningless.