Brian's tweet is illustrating how topics that the mainstream media called "QAnon conspiracy theory" have been proven to be true. This is an admission that the Q posts have been proven to be accurate. It doesn't matter that Epstein was known prior to 2017, or that Brian Cates mocked Q posts. During that time, Q posts were still questionable, which is why proofs were such a huge topic. The mainstream media did its best (which is never very good because they are so incompetent) to vilify Q and followers as crackpots. Brian is just showing examples of how conspiracy theory labels are used to suppress stories that threaten the mainstream media narrative.
Brian's tweet is illustrating how topics that the mainstream media called "QAnon conspiracy theory" have been proven to be true. This is an admission that the Q posts have been proven to be accurate. It doesn't matter that Epstein was known prior to 2017, or that Brian Cates mocked Q posts. During that time, Q posts were still questionable, which is why proofs were such a huge topic. The mainstream media did its best (which is never very good because they are so incompetent) to vilify Q and followers as crackpots. Brian is just showing examples of how conspiracy theory labels are used to suppress stories that threaten the mainstream media narrative.