I’ve known other schizophrenic people who do seem to have brief periods of lucidity. Sometimes on and off throughout a day. Really sad.
Is there a link to his profile/are his posts browse-able?
Not his old posts, but if you're at all interested in seeing his old streams circa 2015/2016, there's an ongoing live stream here: https://www.youtube.com/watch?v=1iyknwjYbRE