I think this is a great suggestion. We should pick a date for EVERYONE to start. I understand that that will mean excluding people who start later, but you can't have a book club when everyone is on a different chapter. The club can work in cycles so the "new" people will have a chance to jump in at the beginning of the next cycle. In other words, once the start date is set, you can't sit with us.
We should also have a live call at the end of every chapter because it's much more organic than typing messages on a board. Again, I understand that not everyone will be available at the same time, but perhaps there can be two calls at different times so that more people can participate.