Quote from romik:
I think the more information the better, I could be in a position based on a 2 min TF divergence and my PT is limited to say 2 points, at the same time my exit point turns out to be one of the major resistance points, which I would have traded larger position on breakout anyway, so that 2 point PT can become 4-5 points, as 4RE in his journal, I tend to trade breakouts for 1-2 points. It can be beneficial to try and see what other traders' systems tell them, even if that contradicts with our own.
And to add to Jimmy's post, yes of course a trader should really only trade his own systems calls, but the strength of a signal increases substantially if your system tells you to go long, same here and others, as all systems are based on probability. So I will look at other peoples charts and read their reasoning. All other images of PnL are just meaningless.