The SSID for the WiFi at SFO is called “#SFO FREE WIFI”. It’s named as if someone has a wireless hotspot in their backpack running on a battery pack trying to steal the login information for your bank.
I had the same reaction the first time I saw the WiFi SSID at SFO. “Surely that can’t actually be the name of the official WiFi here. Let’s let it keep looking for networks...”