Sometimes you need to learn by doing!
Me, being new at this, didn't realize that using email for discussion would be a hassle to so many (I am an email ninja and use filters to control my email flow), but hopefully I've learned quick.
So, in response - no more group chat in email!
The email mailing list will be used for announcements from group organizers only.
This will *greatly* decrease the email traffic you will receive from this list (for all the email I read, I don't send all that often (once or twice a week...maybe... promise!) !).
For group chat I have re-enabled the Message Board:http://blog.meetup.com/309/messages/archive/
I hope that the decreased communication on the email list will convince you to keep it subscribed, however, if you still want to unsubscribe from the email list, as mentioned by Scott, you can set you communication preferences here:http://www.meetup.com/account/?tab=comm
There's lots of great suggestions on where we can meetup and a Center City meetup will be happening soon.
Thanks for you patience during this time of transition (and umm... learning!).
Thanks and happy 4th of July Philly!
(maybe next year we will be prepared with blogger-specific meetups for the 4th?)