You have all the good intentions, but since no one else does this around your location, I don't think you're achieving anything.

You mean, they used it so people trying to use their maps apps didn't have to wait several minutes for a cold GPS fix?

The same physical location showing a different SSID every week but the surrounding ones not changing would be deanonymizing you much more aggressively.

People mostly don't change SSIDs or even move networking hardware - e.g. AirBnBs.

Edit: and also are you still carrying a smart phone while doing this? The device which has GPS and a cloud internet connection?

How do you coordinate across all of your devices?