When people use it on the internet, they usually use it as a means of non-sense.
"OMG THERE IS NO SPEWN" ~ Thousands of dweebs on the internet
'There is no spoon' implies that, despite all visual, physical, or mental evidence to the contrary, the thing in question does not exist.
"Dude, I just saw Bigfoot! Man, he was right there!"
"There is no spoon."