Why have they closed the comments? Are they afraid of something? I'm sure this is a scam because I can't see any description or any explanation. So, as you said, this is a classic scam, and unfortunately, you have to wait until many people lose their assets. again!

Because they know that people will post that they are a fake channel of Ripple, no legit platform will do a classic scam scheme of sending first to receive double the amount; several years ago, so many got victimized by this scheme; it was new back then because these scam channels have so many followers and likes.
We have to warn our friends about this scheme; after years of not seeing this scheme, they are active again because many new people are coming in to invest.