I'm glad that you're looking out for people, I just don't know who these particular people are! You must have mental models of people which I don't have; send me a PM about what sort of person would be less likely to attend after reading both your post and my comments.

Personally, the big relief for me when I came to a meetup was not that I knew too little, though that was the fear of which I was aware. Instead, the big relief was that people were allowed to have fun, that Seriousness was optional. That made my sense of relative ignorance seem less important as well. Humor seemed like a good way to communicate this aspect of the meetups, I thought.

As for KW, I haven't been around there much, but I'll see what I can do :-)