[caslon]

It demonstrates that he did something worse than what he's accusing his former intern of doing:

Second, we’re also excited to announce one of the first (of many!) projects that Amjad has worked on with us: Codecademy Labs, the easiest way to play with JavaScript, Ruby, and Python online. Now, after you learn with Codecademy courses, you can use Codecademy Labs to create your own programs, share them via Twitter and Facebook, and show your friends what you’ve learned.

Unlike Radon, he commercialized his "clone."

It doesn't matter morally that he cloned what his previous employer did (and it's hard to argue that Radon's tool is a clone to begin with, not that there would be anything morally wrong with it), but it does highlight his hypocrisy.

[lwb]

Tbf, he made the first version of Replit as an open source project before joining Codecademy, and it's likely that retaining ownership of that project was part of his employment contract.

[underwater]

Amjad was one of the first engineers at Coder Academy. It's quite possible that that project was his baby, not just something he happened to work on.

He also spent 3 years at Facebook between Coder and Repl.it, so it's not like he walked out the door with the idea.

[DangitBobby]

The intern left repl.it 2 years ago, for context.