[brookst]

The question is whether you own information about their food choices that you can sell to a third party without even telling the customer it was collected.

On the one hand, it seems obvious that you have a right to observe, collect data, and sell it. On the other hand, ick.

[SantalBlush]

Yes, and it's "ick" because that's the actual definition of a spy [0]:

> 1 : one that spies: a : one who keeps secret watch on a person or thing to obtain information

[0] https://www.merriam-webster.com/dictionary/spy

[cqqxo4zV46cp]

“Ick”? “Actual definition”? I think we’ve got more intellectual integrity than this.

[seanp2k2]

Just ask TV and car manufacturers who collect telemetry about absolutely everything you do with their products and probably everything that happens on your connected phone and/or wifi network too.

[zzo38computer]

Such things would use up the customer's (electrical) power for the company's profit in ways that were not intended by the purchaser. That is in addition to spying, which it also is.