lolz ;-) .......

you write the code needed to do it ;-)

*all members being friended might tax your server... eventually.

but if you just have to do it, this mod might help you code it

be_tom

@SA -
yep.. could be used as basis, but BeTom only befriends to one user;
BroBrix wants all members to be each others' friends
-- moare code work ;-)

You can just create a registration hook and add friendship between new users and existing users. But as "D" said eventually this can slowdown the process as the system needs to pull out all the users to add them as friends of the new user. The "betom" plugin and the elgg wikis can help you. You can also reduce the server load by doing some custom coding with your own sql.

Thanks a bunch for all of your insights! Very helpful!