I'm tagging this on to an existing thread, since it seems useful here.
The form invites you to add letters from non-medical people, and your own latest guide says,
This includes any letters from friends, relatives, carers, neighbours and support workers such as social workers and housing workers. If you live with someone, a partner or family member for example, they may be able to provide very detailed evidence about the way your condition affects you. (p63)
Do you think that the DWP (or the ATOS ADA - new term for HCP?) will either read letters from family or friends or take any notice of them? I'm concerned that putting others through the distressing task of describing someone else's trainwreck of a life would be pointless if they were disregarded on the "They would say that, wouldn't they?" principle.