What is it with these people that write these dumb make belief stories? Are they in it for the easy money? Are they in it for the attention? Is it the lulz?
What motivates people to create obvious bad fiction and the try to sell it as real?
There are lots of genuinely interesting mysteries, some of which suggest fantastic things, but this kind of stuff is just taking all the fantastic parts and mushing them together without caring about, well, anything really.
Well, the Benben stone is in a pyramidal shape, so it's technically the Benben pyramid, just not the kind to bury people in. They're probably talking about this one, although it's made of black granite, not meteorite.