Just another pump and dump scenario that is common already in the crypto space.
WSB is saying already that they will pump XRP days ago and after that, its price went up massively. Unfortunately those who bought at the peak are now at a huge loss. As a trader or investor who are finding for short term gains, you must know that when a coin goes up already you don't need to chase it. Now many got FOMO'ed and now at a loss

.
If you are saying that XRP is displacing DOT because of the recent pump and dump then it isn't. DOT will surpass XRP in the next weeks.