That's a pretty bold (and borderline offensive) statement. You're effectively thumbing your nose at anyone who develops open source projects and even more so, anyone who subscribes to a philosophy of the open-nature of the web.
I think you're taking my tongue-in-cheek reply to a troll a wee bit too seriously :-) We love open source at Lucidchart and employ a lot of people who contribute in meaningful ways to a variety of open-source projects.
That's pretty big talk coming from someone whose site has ~250 !important declarations in their CSS on a single page, and had to use a jQuery plugin to handle cookies (lol). If working there is an "amazing job" then I'm on a pretty awesome level.