From Pluralpedia, the collaborative plurality dictionary

Faking is when someone claims to have a disorder that they don't actually have. The plural community and disordered plurality in particular are thought to have many fakers, although it is impossible to know if someone is actually faking. This overlaps with the common perceptions of Munchausen's syndrome and other factitious disorders and the concept of iatrogenic disorders. Some systems who start out faking may become pseudogenic systems.