Would people respond the same way if they knew it wasn’t a real request i.e. take it less seriously?
> Hi! We're trying to study CCPA compliance of random sites. Could you help us by answering a few questions?
then I absolutely would have replied, and would have replied honestly. People generally like to be helpful.
To be honest, I don't know how you get this sort of analysis done without poisoning the intent and maintaining integrity.