Do you not actually understand how Twitter works?
Panko made a post and linked the billboard tweet. Posts are seen by everyone following Panko.
Rie responded to a tweet. Tweet responses are not displayed unless you specifically look at Rie's post responses.
If Rie was reading this, she should go to the billboard tweet, copy a link to the tweet, and make a post with the billboard tweet in it so her followers can see it. That will get much wider spread.