Replit is about everything surrounding the eval() call. The intern's clone, according to them, had nothing of this (scaling, user accounts, saving code snippets, ...). If they'd rebuilt all that too I'd see the point, but really, what great secrets are there in those "design docs" that just refer to the part of the service where you put in your code and click run? These things have been around for at least a decade, this one just seems to have the most languages.

If it is bizarre for an intern then how does it look when "employee #1 of Code Academy" starts Repl.it right after working on the same kind of thing there? This smells like someone who saw himself in the intern and disliked it.