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What people, including the article writer, don't get is that Stack Overflow is a website for serious computer science professionals, not wannabe coders looking for easy homework help and fun conversation. This is coming from someone who was on the receiving end of some pretty nasty anti-newbie sentiment, but all that did was teach me how to behave like a professional and still take down trolls.
First, know that many people get promoted in this sort of way - two of my former managers were. Whether this is good or not depends on the person - but you can read about management and project management and get the company to help with leadership courses and the like to fill in your knowledge gaps. To do this you have to take a deep breath and believe in your ability to overcome.
As a journalist, you can create a free Muck Rack account to customize your profile, list your contact preferences, and upload a portfolio of your best work.