You should probably be more freaked out by your phone. It collects this data by default and sends it to Google or Apple. I think that Google still has an API for querying their database.
My final project for undergrad used this service along with WiFi packets sniffed from coffee shops to show the privacy implications of leaving WiFi on in public.
Since phones/laptops send packets containing the SSID of saved networks it is possible to locate home/workplace of a device, assuming the networks at those locations have a somewhat unique SSID.
From that perspective, I'd say a common SSID is better to have than something unique.
They only send SSIDs of ‘hidden’ networks. There is no reason to send SSIDs of normal visible networks because they are visible if you need to connect.
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[ 3.4 ms ] story [ 41.1 ms ] threadFeel free to steal my config.
The more the merrier.
https://www.lifewire.com/is-your-wireless-networks-name-a-se...
https://wigle.net/stats#ssidstats
Since phones/laptops send packets containing the SSID of saved networks it is possible to locate home/workplace of a device, assuming the networks at those locations have a somewhat unique SSID.
From that perspective, I'd say a common SSID is better to have than something unique.
https://en.wikipedia.org/wiki/WiGLE