Pretty much each revival is a scam. There is not a single good reason for why something like this should happen. Why take insane risks to help others get scammed?
Won't SOLANA be the perfect example for this? Solana lost most of its value years ago but now we see it being considered as one of the biggest cryptocurrencies last year extending to this year. It is possible yes but not all the time this happens. You will be lucky to have kept holding on to a coin that has long ago declined.
That is not true. Losing a lot of value does not make it a dead coin, it just means it followed the natural 4 year cycle here.