@NovaSquirrel Yeah, our streaming site logs history in a file forever, but never reads that file, and tosses in-memory history when it restarts!
It used to send you the entire in-memory history on connect, but we recently changed it to only send you the past 4 hours. (4 hours is long enough to probably be longer than any given stream, but short enough that you don't have to worry about people coming by the next day and reading the kinda private conversation you had in the stream chat.)