When an item is displayed from a search in Showroom View the seller's feedback score is displayed.
There is no clue that the number is the seller's feedback though. When the seller's feedback is zero and is simply displayed as [0] then it is even less clear as to its meaning. Surely something more relevant could go there (e.g. the seller's name) or at least some indication of what the number refers to.
Capture:
Country name : United Kingdom
Country code : GB
Agent : Mozilla/5.0 (Linux; Android 7.0; SAMSUNG SM-T580 Build/NRD90M) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/5.2 Chrome/51.0.2704.106 Safari/537.36
Viewport : 980w x 1386h