Lemmy Support

I love Lemmy and I try to spread the info about it but almost always I face one issue - people being confused. For me (and probably you) it's hard to understand what's confusing about the way Lemmy works, I mean email works on the same principle and everyone's ok with it. It basically boils down to like 3 questions:

• Why do I need to choose a server?
• What is the server / instance? / Is server a subreddit?
• Is Lemmy the same thing like Reddit?

So my idea: Could we put it as a FAQ on the join-lemmy.org? Feel free to submit best answers to these questions (I try to submit mine later when I have some time). Or come up with other frequent questions you heard