Originally posted by Veseljko:

I believe that’s because people organize their storage area before they get enough iron to waste it on reinforced chests. Process of reorganizing storage area can be very tedious. I did it only when i lost inspiration for other projects.

Yeah, it's a pain to reorganize chests once they have been put down. For example, at our Spawnpoint community hub, we have an established area with about 30 chests. My goth, imagine having to resort all of those stuff... [sigh]