It is not that bad if someone will trade his bitcoin to buy altcoins, it is taking the risk, maybe he did that because he wanted to make more money, you won't lose any of your profits by that because you have the Altcoin in return, if you also know how to trade Altcoins, then it is a win-win for you. Other people just wanted to hodl their bitcoins because they don't what to do about it, what they know is to earn it and hodl it.

What am I doing right now is I'm earning bitcoin and I use it on buying Ethereum and going to hodl it for long term I guess to make more profits out of it. Sometimes, you need to look what is in the future for you to have guts on investing and not only look on what is in front of you.