There are lots of investors that were bankrupt because of choosing wrong coins. They tend to listen to the hype at the trollbox, which little that they know, this people are just telling them to buy so that they can dump their coins to them at a higher price. One thing a trader must learn, never listen to the trollbox without researching.
Yes, failing to choose the right altcoin will trouble us for sure as we could not escape from the dumps by the people who are developing it. There are many short term altcoins are being created just to grab possible money, but they are using innocent traders as baits. That is really pathetic situation for traders, maybe proper analysis on choosing a right coin would save them.