Now that you got some money, you're showing your real self, and it's not pretty.
What did this kid steal from you, by the way?
I remember when repl.it was a black shell that evaluated Java expressions. It was quicker to Google your page and type some Java one liners, than to create a main.java file and use javac. Once you added that ugly online code editor, it was all downhill. Now it's some kind of online coding platform. Gone are the days of that quick and useful repl.
That said, I think behind the 20MM and the shiny designer buttons, the core tech boils down to that same little black shell, which must be why you felt so threatened by a junior dev with too much time on their hands.
And if we are being honest here, 20MM from investors is not that much. I routinely see investments of 500M or more in various startups, so sit down and focus on your core product, before another intern decides to run compilers in a docker instance.
You let investors get into the head of that kid from Jordan long enough to become the litigious villain.
For shame.