As far as the reason for this information being on different websites...
Jonah is the site owner here, so this is his bulletin board, though I have assisted a little bit with some moderating. I did temporarily set up a similar discussion here, so I apologize for any confusion (you were the one person who got around to posting there as I recall), but now the (ongoing) discussions are where they are meant to be, at this other website, http://bahai9.com/forum/
The reason there is a Yahoo Group for discussions is because this service can allow us to have a convenient calendar as well as database for keeping track of chats and discussions going on in the Bahá'í world. It is intended as a central place which allows Bahá'ís to publicize such activities as a book discussion, online fireside, etc., which are following a certain time schedule or deadline.
As far as the post on the Tower of Babel, I really don't want to deter you in any way from contributing. Maybe I should have said that it didn't seem like the intention of the post was to find out other interpretations of the Tower of Babel, but was more focused on a hypothetical. Since the http://bahai9.com/forum/
website is intended for ongoing discussions (which could continue indefinitely), my intention was that the topic title should be related to what is going to be discussed there for a while.
I would also highly recommend http://forums.delphiforums.com/planetbahai
if you would like to get a lot of response, as well as discuss items which are more hypothetical, etc.
I really didn't intend to cut down the lines of communication. I would just like to see that discussions end up where they can be engaging as well as well-organized, etc..