In trading I find that there's a sweet spot between being flexible in your analysis and having conviction in your trades.
If you post a trade online and express a great deal of confidence in it, I think it's easy to want to be right and defend your views as opposed to how you would manage the trade if it was done privately.
At least I feel this is the case with me. That's why I'm not so interested in posting actual trades, but more interested in posting forecasts and discussing where I think the market's most likely going short-term.