If you google "Expedit records" you will see many pictures of the shelf full of records and toppled over. It probably has a lot to do with the size you get, how full of LPs yo pack it, and whether you attach it to the wall or not. I wouldn't doubt that some of the toppled over Expedits were never screwed to the wall. From the Expedit product specifications:
"This furniture must be secured to the wall with the enclosed anti-topple device.
Different wall materials require different types of fasteners. Use fasteners suitable for the walls in your home (not included)."
I'm probably going to get some of these, but I'll definitely fasten them to the wall and I might even reinforce the shelves depending on how well (or poorly) built they are.