Inclusionism is the philosophy that information should be liberally added and retained on All The Tropes. It is espoused by users called inclusionists who favor keeping and amending problematic articles over deleting them. Inclusionists are generally less concerned with the question of notability, and instead focus on whether or not an article is factual, with merit, or useful.
Inclusionism is opposed to deletionism which supports the deletion of unworthy articles and exclusionism which involves removal of unhelpful information (and deletion of an entire article only if such removal leaves nothing behind). In other areas, inclusionism usually aligns with eventualism because both philosophies hold that articles with mixed quality of content should be retained and will be improved in time. As the size of ATT grows, incrementalists may become more inclusionist as the standards for notability become easier to meet. Inclusionists do not necessarily lean toward either end of the mergism-separatism or exopedianism-metapedianism spectrums.