The article was also making the point that ones who are buying on the dip are going to be in the "meat grinder" later. I agree with you on the selling earlier part, but selling now would have to depend on one's beliefs of the future, tax ramifications (took a big hit there, but the lower prices have gone down further than the hit at this point, except for my RE exits, but that too is coming), and their own financial situations.
At least people should be out of any margin at this point and betting on their own money, if not, then I would recommend sells to that point. But I'm nobody for recommendations, to each their own decisions.
News 
Market Data 
Discover 
