The LSAA aside from being a marketing organization is a social institute, this allows it with its various certifications, identifications, and other useful paperwork to certify their identity to go unquestioned through the multiverse. Canonically anyways.
In reality, this group is going to be used for storing character sheets in a Fandom Wikia hosted by the founder of the group and the mods, of course, it will be used as well for meeting up for roleplaying, discussing character ideas, making a large open-world setup, and other such shenanigans.