She's talked about it, it's like he third language or whatever. They're already kind of filler words for native speakers, imagine how much you'd lean on them if weren't as well versed in the language. Plus it not being her native language it's harder to gauge intensity of things, you don't get how fuck sounds harsher than damn, ect.
I think she's also said she just basically learned the language through using the internet, at least that's how she learned Japanese I think.
