I don’t like to believe random “Source: trust me guys” info posted on 4Chan or PonyChan but I really hope the Cutie Mark Crusaders one is true because that’s a neat idea. That sounds like a cool “show don’t tell” worldbuilding thing too, like Sunny casually talks about being in an organization that is basically Girl Scouts that’s just called the Cutie Mark Crusaders and you can just fill in the blanks from there if you’re a G4 fan. If not, well then it’s just a cute Easter Egg you don’t need to know beyond “it’s basically girl scouts.”