Some may say that especially to the people who experienced scam or lost from altcoins. but some also may say that it's not a scam. It depends on the experienced of the person.
That is depend on the person on how they experience it but not all altcoin are scam. Some are worth of investment and are profitable. When people lose the value of there investment, think easily think that they scammed, it is just that the platform they use is the tool for the scammer enter and you become their target.