Yes this is a good thread. It is unfortunate though that people do not fill in properly their "profile" so that at least clicking on their pseudo would inform about how old they are as this is a key factor in the way they think relative to money management / investment, etc. Ladies have an excuse though..., but we miss often information about the profiles of the posters.
Back to worst and best. We've had a bit of a mix in the description of what people did as some looked like long term investors (with wrong picks - even Buffet did) and others were trying to do some timing as well which is closer to trading. Trading and investing have nothing to do in common.
I talk a bit of trading @
http://tradingautomation.blogspot.com/ but while trading you know you're gambling trying to put all odds with you (clear open / close rules), good money management, stops (never accepting to lose more than X %), never having more than Y% per line, etc.. But this is sophisticated gambling not investing. A trading portfolio should be less than say max15% of an individual total net worth.
The question about holding on a losing horse is more of a trading question (initial stop loss not thought of !) than of an investing type of behavior. The investor will diversify, know why he's in (fundamental analysis, knows the boss, knows the products, whatever), and let it unfold (eventually to zero). If he's good at investing (not trading) in companies (in stocks) he'll have a limited number of burns for a vast majority of companies making it. The question though is for the average man, why not invest in ETFs following indexes (SPY, QQQQ) or low fees funds ? instead of trying to chose companies ? and we're back to Greaney's site and thoughtful advices.
One more point, Real Estate - especially in Greaney's site - is too often dismissed as not adequate or not considered for whatever reason. Funny to observe than many of your best investments have been in RE (whatever kind of) and that very few of you are attracted by commercial RE (where I made my money).
As I said my biggest blow was being too leveraged on a bear market with huge short positions and not weathering a pull-back which you can hardly see three years later on the chart ! Trading has that beauty that you can also loose big buck being entirely right on the target.
Patrice.