It is definitely a Ponzi scheme...problem is that everyone as you said in the post is showing on social networks their huge profits, stimulating fomo into their followers and no one knows when it will collapse, potentially could last for years so some people are willing to take the risk for a daily 1%. But one day it will vanish for sure, who made big profits are the ones on the top of the Ponzi, all of the others will be left with nothing.