Someone on the Roblox Discord pointed this bug out about user inventories:
Take for instance this page http://www.roblox.com/users/261/inventory/#!/shirts
You will here see this item in the inventory:
This is the group the asset has been created by http://www.roblox.com/groups/group.aspx?gid=2592788
When you click this link you will end up on the profile of the same userId as the groupId of the actual creator.
That is, you will end up on this page instead: http://www.roblox.com/users/2592788/profile
This also applies to badges and other assets it appears.