Thinking ahead to when the use of Crystal explodes, there needs to be an agreed upon name to call its users (think swag, article references, etc). Can’t have Crystal conferences, meetups, etc without a name people in the community use to refer to themselves as.
So if you use Ruby you’re a Rubyist.
And when you use Crystal you’re a ???
OK, my humble suggestions to get the ball rolling.
Crystalnistas (like for Python)
Maybe make it a contest to draw attention and notoriety.