The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Opposite Unity (10 members)
- Pages Misusing Namespace Restricted Templates (1 member)
- Pages Using Deprecated Templates (0 members)
- Pages using Tabber parser tag (62 members)
- Pages using duplicate arguments in template calls (554 members)
- Pages with broken file links (518 members)
- Pages with ignored display titles (444 members)
- Pages with reference errors (1 member)
- Pages with script errors (8 members)
- Pejorative terms (44 members)
- Philosophies (14 members)
- Political Parties (19 members)
- Populists (16 members)
- Post-Humanists (10 members)
- Post-Ideologies (2 members)
- Post-Left (12 members)
- Pre-Enlightenment Ideologies (68 members)
- Prefixes (3 members)
- Primitivist (25 members)
- Quadrants (16 members)
- Reactionary (66 members)
- Reddit Users (18 members)
- Religious (102 members)
- Revolutionary Nationalist (59 members)
- Right Unity (29 members)
- Shocking material (2 members)
- Socialists (131 members)
- Stages of Development (10 members)
- Status Quo (95 members)
- Stubs (183 members)
- Syncretic (33 members)
- Syndicalists (14 members)
- Talk (537 members)
- Techno-Progressives (6 members)
- Templates (3 members)
- Theocracies (17 members)
- Third Position (29 members)
- Transhumanists (23 members)
- Triangles (4 members)
- Ultranationalists (30 members)
- Users (262 members)
- Values (9 members)
- Vandalism (0 members)
- Videos (25 members)
- Warned pages (6 members)
- Welfarists (36 members)
- Wiki Users (13 members)
- Will Be Integrated (1 member)
- Work in Progress (11 members)
- Zionists (11 members)