As an investor, i did a lots of invest in altcoins. Those were suppose to be good that time with having good hype, good team and community. But with having all of thats, most of altcoins scam after a time! I wonder for some altcoins, they were suppose not to be go but they scammed without any reason! And hundreds of altcoins are in my wallet, which are turn into dead shitcoin now.
Indeed, that is one of the big risks of altcoins. especially if they are new altcoins, don't ever expect to make long-term investments in them. This happens often with new altcoins, most of them are just hype. And in the end, their prices will drop and never rise again. So if it's a new coin, it's better to take advantage of the hype and just take profit. Don't believe anything they say for long term holding. Or stay away from new altcoins, focus on Bitcoin and top altcoins.