Need more information, they could have valid reasons for this and alternative means of notifying some members and not others, some chapters and not others, or don't want to make definitive statements about anything, all prospectively reasonable. These folks have lots more eyes on them than we in the public at large do. Would wager scads of them will be there. If any of my clients were 30,000 member large organizations of any nature planning an event like DC, I'd almost certainly advise them not to broadcast their intent in print nationally or to whole member lists. Lists of me, you and a dog named Blue, fine, lists of 30,000? bad in a country with hacks like the SPLC, etc.
Need more information, they could have valid reasons for this and alternative means of notifying some members and not others, some chapters and not others, or don't want to make definitive statements about anything, all prospectively reasonable. These folks have lots more eyes on them than we in the public at large do. Would wager scads of them will be there. If any of my clients were 30,000 member large organizations of any nature planning an event like DC, I'd almost certainly advise them not to broadcast their intent in print nationally or to whole member lists. Lists of me, you and a dog named Blue, fine, lists of 30,000? bad in a country with hacks like the SPLC, etc.