Thanks for you consideration, but forming a big FC is not in our best interest, because of the following reasons:

1. We do not need 500+ people, we do not even need 128 people. I guess about 60 would be more than plenty to always have enough people around.
2. FCs have tiny chests that would have to be properly managed in a FC. Even my tiny FC always has all slots full and we use the chest actively for trading/mailreplacement purposes.
3. The FC message for login is tiny. Things that need to be propagated to all members should be handled by the respective guild leaders.
4. Even with 4 people we generate more points than we can spend
5. A LS mule would need an account that hosts said mule, bringing with it issues of responsibility, trustfulness etc. There really is no reason to share stuff between the alliance anyway.

Reasons for LS:
1. Retain a sense of individuality in the alliance. I have a FC with my friends, we can do with the FC what we wish, we can name it as we wish it and we can identify with it and we can proudly display the tag and its banners.