Can you prove your wordings or have you any link which says like this? Never spread rumor as many altcoins already proved their value and established and investors first choice. May be some altcoins do scam after their ICO but not all altcoins are scam.
What I know is not true because I know altcoin can help the people's economy and if altcoin is a scam show proof that altcoin scam, then this is the right time to invest long-term because I do not know when bitcoin will return stable
I don't know if OP was just saying nonsense because the market right now seems not going to recover anymore that is why he concludes such thing lol.
If Altcoins are just scams, theymos is not going to let those altcoins project to be posted here on this forum anymore, and if it turns to be a scam, then all of the tokens that we are holding right now are just trashes.