Ok so selling at low price could possibly mean 2 things for me.
Some people have needs. They earn just to sell. We might not be able to understand their perspective because we are blessed with $$$. But not all are. They are here to earn their daily wages and they just sell it off irrespective of the price.
Then there are some who play a very smart game. Trading is a very powerful way of earning, if you know proper technical and fundamental analysis, you can make some really nice money. So when they see a low price and suspect it to stay there for some time, they simply take them out and invest them at other places to make some profit. And later when they see the price going up again, they purchase again. That's a good strategy to make quick money afterall.
And then obviously there are those who don't have too much faith on these tokens and are too naive to understand its true worth at this point in time. Such people learn with time and experience.