Agree. But practically they may claim using such data to improve their systems. This is a valid LI justification. But still it provides no benefits to users to whom those data are collected from, while at the same time increases their risks (such as mishandling of their data - which is common since it’s very difficult to handle data 100% correctly).
Silly question: are all cups the same volume? I didn’t bother to measure but the cup i use to scoop rice seems very different in size from the one I use for dog food…