Ah the humble service set identifier! It seems to have grown from a simple way for access points to identify themselves to potential clients to a little public bulletin board for airing one’s grievances toward noisy neighbors or showcasing one’s wit.
What notable SSIDs have you run into out in the wild or created yourself?
It’s literally just a packet with the ssid and related info in it, shouted into the void. It becomes an issue if you shout so much that other people’s traffic is effectively jammed, otherwise, have fun.