That's interesting, I was wondering that too. In my view, a list of numbers without any context is meaningless and unhelpful. Posting "5.2" means nothing, whereas "5.2 today, down from my usual 7+. I've noticed that when i eat cheese in the evening I always have a lower reading the next morning" is potentially useful to others who could then try that out for themselves.
When I first discovered this forum a few weeks ago I think I asked quite a few questions on that thread, and some very kind people told me about dawn phenomenon, liver dumps etc. I found that invaluable. I didn't know that I was supposed to start a new thread to ask those sorts of questions - it's very difficult for newbies to know what's allowed or not allowed. I mean, I knew I shouldn't ask questions sbout, say, exercise on it but I genuinely thought questions/comments associated with FBG were allowed.