I contributed many example questions and discussions to the previous (failed) Area51 proposal for a Coffee site a few years ago. And I didn't even know about this one until seeing it on the SE dropdown menu yesterday!
So, bluntly, what did you guys do right the we did wrong? And how come you didn't (or, why don't we go and ...) invite old committers from previous proposals?
The last proposal seemed to die when it was discovered that Coffee issues are all on-topic at Seasoned Advice. How did you guys jump that hurdle??