Pro tip: software is written to solve particular problems. But all proprietary software is written to solve the same problem: how to extract maximal profits from consumers.

If it's not open source, it's not worth running.

If you're a software professional, and the projects you work on are proprietary, you're part of the problem, not the solution.

@hyc what about b2b software?
@hyc I think hardware code (firmware, etc) might be an exception to this, but I'm not sure. This is broadly true, I agree, but feels a bit too binary... there are NO conditions where proprietary software makes sense.. ever? For the rest of time? Never ever ever?
@codinghorror why is it closed, what are they hiding? If you've paid money for it don't you think you have a right to know what it's really doing?
@codinghorror @hyc what is an argument in favor of firmware being closed source?