A fancy funded company like Replit getting scared by an intern's weekend project is entertaining. If your moat is so low it can be replicated in a few days, I think this open source project is the least of their worries.
Agreed... but the intern is obviously incredibly naive in thinking that repl.it would be happy to see one of their ex-interns working on a project that does pretty much the same kind of thing they're doing... whether or not this is a threat to them right now. There's a tiny, but non-zero chance, that this project could become successful and who knows, take marketshare from repl.it... and while everyone is pretending…
Because Replit didn't originate the idea of "web site you can execute code on". There's no idea to be stolen here, or if there was stealing, it's not from Replit.