An in-game UI that let you try on every piece of glam and how to get them

[Iscah]

He also said that if they made a list, people would feel compelled to "complete the list" and this could put some unnecessary weight on their shoulders.

We already discussed this further up the thread. The phrasing "complete the list" indicates that they're talking about the concept of a checklist that marks off which pieces you have. Dreamfitting doesn't do that – it's just a list of everything you can get, without any tracking of what you own.