ZD: Sam doesn’t consider them chareidi since they don’t keep halacha properly. Same idea of him not considering MO those who don’t keep halacha properly.
Though, a notable difference between the two is that a self-identified chareidi who is a tax cheat when asked why he cheats on his taxes doesn’t answer “because I’m chareidi and chareidim hold its okay to under-report owed taxes”; otoh, a self-identified MO when asked why they wear pants, shirt skirts or aren’t shomer negiah often will answer that it is because they are MO and they hold b’shitta that it is okay to do that.