Because I'm a person first, not a moderator. As a person I think you should always cut losses and take profits. It's okay to do so. You can buy back in, but you should always have profit taking spots and loss cutting spots. He said he lost 66% which is just silly to take that hit. I'm going to use 60% and $1.00 in my example.

If you take a 60% hit on a $1.00 stock then to break even the stock must rise 150%.

Here's how I get that %. 60% of 100 is 40. 40 x 1.50 = 100 so, by cutting a loss @ 10% there is still money 90% of your initial investment to buy back in. After the stock dropped another 50% of staring value he could've bought 2 1/2 times his position by cutting losses early.

$1.00 pps x 1 share = $1.00 invested
60% off a dollar leaves $0.40
If he had cut at 10% of his $1.00 investment he'd still have $0.90
$0.90 invested ÷ $0.40 pps = 2.5 shares

I would rather educate on better trading strategies and save someone losing everything than sit here and pump someone full of hot air and make a buck at their expense. A trader that is knowledgeable will know to cut losses and realize it happens and will protect himself to fight another day so to speak. Someone that doesn't know any better and is new will take a huge hit like that and usually sell and never touch the market again. So by educating it helps to keep an investor around to; buy back in, make money by cutting losses, gain confidence, and help build momentum that we all benefit from.