I admit still don't have a good JS coding style to prevent namespace polution, but i'd rather improve this particular function name. I mean: loadSessionData is a too generic name imho to belong to global namespace. I know it makes perfect sense inside twister_following.js but since it is going to be invoke from elsewhere i think we should either refactor this file into a more of a class-like pattern or, in the meantime, just prepend a more specific name like followingLoadSessionData or similar.

Later i think a class-like kind will suite better, also expose those variables (followingUsers, knownFollowers etc) as properties or methods (even better).