Looks like a shill thread. I've seen these tactics plenty of times before.
Most pump-and-dump Telegram groups attempt to trick people into joining so that the owners can dump their coin on people while announcing a supposed pump. It's a reasonably clever scam tactic.
I have no sympathy for anyone who joins that stupid group, because participating in pump-and-dumps is borderline scamming anyway.
Not unless you are doing opposite of what they tell you to do. Besides those fud pumpers & dumpers don't last for long. Legitimate ones do.
And they're not free to get into.