This is not how "responsible" works for companies like Lego and Disney. They consider everything around their brand to be 'theirs'. An interesting story in that area [1] is the one time that Disney did try to build something resembling chat into a game of theirs (spoiler: it didn't go well).

[1] http://habitatchronicles.com/2007/03/the-untold-history-of-t...