I'm a very new "steemer" and just started a day ago, so sorry for asking the beginner-questions: What is the "discord"? Is this steemit specific or something else?

For people who don't suffer from severe mental problems it's hard to understand how deeply crippling they can be. I am luckily not affected by mental diseases but I try to keep my ears and eyes open and have made it (one of) my tasks to help whenever I can on steemit.