They have already failed once and it was proved to be a scam like coin.

If they saw some pump recently, it does not mean that they are on right track now. If they are able to fool you once again, it means that crypto is not for you. You should have very strong mind and should be able to capture patterns as soon as possible. If you are able to stay away from these coins by identifying these signs, your capital will be safe. I am not telling not to invest in any alt coin at all but do not jump blindly on a coin just because it jumped 200% in last 24 hours.