I think the joke is that she's referring to Joo, not Joos. She saying that people on poast are going to be erased, but doing it in a way she / he thinks is clever, by using "joo" in lieu of "you". That's my reading.

@graf may want to check his logs to look at the account's activity just to be safe. Could be a journalist or a glowie. If I'm wrong, I'm wrong, but better safe than sorry on this one. It wouldn't be the first journo we've seen.