What do they think is interesting or funny?

Thou canst not think how strange a people they are.

In this case, there were only three, not surprising for such a simple example.

If you live your life trapped in a cubicle, just maybe this gadget doesn’t sound so strange, but come on, a doorbell for your cubicle.

Often, as in this case, there is no intentional hoaxing: It is a legitimate, straightforward photograph of something curious.