One chest would be for my duplicated arrows (ok...who HASN'T done this...)
Um, that would be me. Didn't even hear about this bug until the recent threads about glitches & exploits in Skyrim. :shrug:
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As for being Super Packrat..... yeah, I love collecting Stuff?. I use a house mod for Oblivion, mostly for the storage space.... it's got huge arrays of organized and labeled chests for everything!
(ten armor chests, ten weapon, several for bows/arrows/staves, a dozen for different sizes of soulgem, several for alchemy ingredients & potions, a bunch for jewelry & clothes.... yay, stuff! Oh, and plenty of display cases.....)
Automatic display racks? Eh, I dunno. Maybe weapon racks that would display weapons in the open, but you interacted with like chests?
(Come to think of it, there
was that armor stand in Knights of the Nine that would display the crusader gear as you returned it..... /ponder)