Open source isn't about entitlement. It's about making core building blocks of software available to all because everyone shares an interest in those core piec

Open source isn't about entitlement. It's about making core building blocks of software available to all because everyone shares an interest in those core pieces, and it's cheaper/faster/better to work together on shared code that doesn't contribute to market differentiation than mucking around trying to build an maintain a bunch of secret, closed-source code that everyone is going to need anyway. Open source frees up resources to solve more interesting problems. Editing text isn't a particularly interesting problem: the best models for it were developed decades ago, and the main innovations since were fonts and color themes. Text editors are a prime candidate for open sourcing, and most good ones are, including huge IDEs like Eclipse, Netbeans and IntelliJ. To say nothing of Emacs, Vi(m), nano, mg, TextMate, LightTable, Brackets, Notepad++, Kate, GEdit and dozens of other sophisticated, open-source text editors. Expecting GitHub (of all companies) to err on the side of closing up the source for a text editor (of all products) seems strange.