I'll always remember that one free WiFi I had at my temporary housing at Timberlawn Apartments when I started at Microsoft: it was "Bring Food and Beer to B308". I thought it was a neighbor, but I couldn't find the apartment when I looked for it.
You were near Microsoft. Surely, it was legacy from a previous abode but also too much work to expect any visitor to update.
Maybe. Thanks to whoever did that. :)
Skynet was an ISP in Belgium (now Proximus).
I feel like "internet" and/or "wifi" deserve an honorable mention in that they are probably defaults on something but are more likely above #1 due to people setting them as the SSID manually.