Some location services kind of sort of respect the _nomap/optout
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From what I understand misconfigured phones STILL send them your SSID/BSSID/GPS/Dbm but they don't put your data on the public servers.That is, they HAVE your data - they just remove it from their servers. Some less reputable outfits might not even do that (for all we know).
Would not broadcasting the SSID help to keep the ssid/bssid off of these public servers?
That is, would not broadcasting the SSID then prevent all these misconfigured mobile devices from uploading your data to public servers?
I can't find any information on whether that works or not on the net. Can you?