How do you look it up in their database?
Joe Stalker, however, probably won't get it from google. Unfortunately there are many other databases, including ones available at low cost (or free: https://wigle.net/ ) which the stalker is more likely to use, unless they work at google. And when you add "nomap" to turn off google's tracking you'll make your SSID more unique and trackable in every other database.
Since ssid is used as a seed in encryption, there’s value in making it unique.
Geographically speaking, how were those SSID's distributed? Were they spread all around the world, across the continent, or were they all in the same city?
For example, if your home SSID was known and those 216 SSID's were spread around the world, your home could likely be narrowed down based on some general facts from forum posts. "You spell honor with a U! You often complain about the rain on the forums, and those posts came from that ISP's IP block! According to the public coverage maps for that ISP in that English-speaking country that uses British spellings, your wireless network overlaps with this side of the street, give or take 30m. Let's check it out!"
Paranoid fantasy? I truly hope so.
https://developers.google.com/maps/documentation/geolocation...
there are also many open source wifi location databases that can be downloaded and queried locally
devices listening to ssid broadcasts for this purpose are common at grocery stores, malls, political protests, and more