Very well put. Remember too that "Trader" is synonomous with "Speculator". Many people make a great living reaping 10 cent gains (and losses through shorting) and those that do it well may not get burned. But for those who haven't played that game.... I wouldn't recommend going that route without substantial assistance and financial backing. To me trading stocks is like going to the Casino every day and hoping to win a bit (sometimes a lot) or more. Trading is hard on the nerves and for those who can't take the heat...stay out of the Traders kitchen.
If your going to play a stock buy in low (that would be using DD). Then sell bits off as the price rises. That way you keep shares to make more if the price rises further, and you've taken some profit to average up any subsequent drop in the stock price.
One other thing....don't put all your eggs in one basket. Keep different stocks so if a sector goes out of favour you don't have to wait as long to make back the money on sectors that are on the increase.
My two cents worth. Good luck too all.
Mustangman