Cool, another trader wants to start a diary here. Please make sure you keep disciplined 
If a trader can't even update a daily diary of trades, then he can't have discipline to stick to trading strategies
Trading history and diary are not different. If a trader can't even update a daily diary of trades, then he can't have discipline to stick to trading strategies I am trading, I do not have a dairy but I am disciplined. I do not have diary because I see no reason to have one. I think most important thing about diary is to know if you are losing or winning in total but I can easily see this on my trading history. I do not even know trading history because what that is most important to me is if I am losing or winning which I know even without going through my trading history.
Remember. Post exactly how much you trade, exact entry and exit. With net loss/profit minus fees. And why you took and exited. Otherwise, pointless diary
Probably this can be good but I just think that there can be lies there. I will prefer him to include his signals. I mean the time he wanted to enter the market and the price he left the market. I can lose and include in a diary that I won for people to think that I won. You know how people can behave. But what he predicted and the price he entered the market and left would be good to give us evidence that he is telling the truth.