I would say that some people on internet were attracted to something google map, google earth and street view weren’t initially meant for.
They found things that can be seen from Space, or funny things caught on pictures that have nothing to do with maps.
Because of that, communities were created to specialize in finding more strange and/or funny pictures taken from that software.
There are UFOs, crop circles, strange buildings, people caught half naked, having a car crash or doing all sort of funny things.
From this, it’s not really different from the Google Suggestion thing I guess.
I can be wrong though.