Thoughts
One of the things that I love about Etho is that he doesn't assume anything about you, the viewer. "If you've ever worked in the end..."
Like everyone's worked in the End. The game is 10 years old. But it's so much more welcoming and friendly to phrase it that way. Especially over assuming that people know.
Similarly, he frequently reminds us what's going on. 'this is the thing that we built for this reason' and most of his viewers have watched the episode where he built that. Etho's LP is practically a cult, it's not exactly getting new traffic from Trending. But it's about welcoming people, and reminding people, and it's arrogant to assume that everyone has watched your previous videos.
People do that, "as you know..." Well what if I don't know? Then it's like, 'you clearly don't want me here.'