everyone in the photo, not necessarily in attendance. When people take photos at Bitcoin Brunch they usually ask ahead of time, and people who don't want their photo taken make it known. I certainly understand the concern, but it also serves the purpose of giving potential attendees an idea of the vibe of the meetup.

premitive1

bitcoin

Do Bitcoin meetups suck?

My main criticism of bitcoin meetups here, and the reason I don't attend, is the organizers taking photos of the room and putting them on twitter/facebook/instagram to promote the meetup. You can see/recognize nearly every person in attendance.