because that stuff is listed there
Displayed Items When the filter is injected in-game:
- Unique and Set Items (ubercharms are unique items)
- Unique Mystic Orbs
- Trophies
- Great Runes (this includes sewer runes, stones and skulls [...])
- Triune Cycles
- Void Items and Enchanting Crystals
- All Types of Signets
- Veteran Eyes, Act Bosses Tokens, Fauztinville Brains
- Tristram Boxes
- Wirt's Leg and Horadric Cube
- Various quest items, tokens, and stuff of interest that I won't bother listing