Not sure if your question was real or merely a set-up for your bullet points. If the former:
Email. I don't tend to organize things with dozens of people on the list (for that I might be convinced that random mail threads might become cumbersome - I'm not convinced that FB is a solution!). If I want to go to a concert and discuss that with <= ten friends, mails are fine. That reply-all argument doesn't come up. If someone has to decline it's trivial for any participant to remove that address. Or he explicitly asks to be removed. Or - and that's probably the general case, that person doesn't care about a couple of emails and marks the thread as read. Done.
I don't claim that you make this issues up or that these things cannot be a nuisance for some people. I .. just don't have these problems, mails work just fine in all cases here.
I agree that a calendar is missing. I tend to use various things for that and don't have a good solution for this so far. Most of the time it's probably 'no calendar' and only a poll of sorts (think doodle or something similar).
Fair enough. I think other people tend to be happier with an "overflowing inbox" than I am; I ruthlessly prune mine (e.g. I don't sign up to mailing lists) to the point where any email should be important enough to interrupt me. And I find it particularly infuriating to keep getting emails about this cool party if I can't make it. But maybe that's just me.
Email. I don't tend to organize things with dozens of people on the list (for that I might be convinced that random mail threads might become cumbersome - I'm not convinced that FB is a solution!). If I want to go to a concert and discuss that with <= ten friends, mails are fine. That reply-all argument doesn't come up. If someone has to decline it's trivial for any participant to remove that address. Or he explicitly asks to be removed. Or - and that's probably the general case, that person doesn't care about a couple of emails and marks the thread as read. Done.
I don't claim that you make this issues up or that these things cannot be a nuisance for some people. I .. just don't have these problems, mails work just fine in all cases here.
I agree that a calendar is missing. I tend to use various things for that and don't have a good solution for this so far. Most of the time it's probably 'no calendar' and only a poll of sorts (think doodle or something similar).