Creating a team with 400,000 users is antisocial. GitHub teams, and all their inter-related features, are built around a small group of people collaborating together on code. GitHub teams are not intended solely to grant access to source code after signing a EULA. Making a team with 400K users is just a bad idea and this problem was waiting to happen. Unreal needs to find a different solution for what they want.
What other solution? What tools does Github provide to give access to a private repo without creating a namespace which can be pinged? It seems like exactly the use teams were created for just on a scale not seen before. The answer would be Github adding a feature to mark a team as semi public and remove the ability to tag it.
They will probably get a special treatment from Github and Github's code will get an unnecessary `if` clause for the special cases (right now probably only the epic one).
