I just think they're trying to be funny, and people can't be possibly that stupid to ask how to build a wall or not know how to build. I mean honestly, think about it, it's ridiculous.
As i said, if i was trying to be funny i would've tried to make it funny. And as i said as well, mine was not fake, he was
really new and was actually my friend in really life. (And he was not joking)
EDIT: He was new to building, because he never builds. Ever.