I shop with a few reputable online "flash sale" sites. I understand that by definition their quantities are limited, and when stock is very limited, they indicate how many items are left. If I see something I like, I quickly add it to my cart. I know it won't stay there forever, but there is a timer telling me how long I have to check out.
In contrast, LR often seems to have extremely limited quantities but never indicates how many of an item she has left. Also, items do not stay in the shoppers' carts for any guaranteed period of time while they finish shopping or complete the checkput process -- they literally disappear while her customers are checking out.
Here's the thing: the online sites I visit have fantastic sale prices and quality, name brand items. LR offers generic, low quality items and marks them way up!
No wonder her customers are upset with her "business" practices!