All those cryptopia pump groups you find in telegram are part of the same scammer team.
They only pump coins without any volume, which means their whole profit is paid by those who are stupid enough to follow them.

It's always the same tactic:
They buy before pump and then they publish the name, so followers buy and they sell.

You should just ask yourself, where does the money come from when there is almost no volume?

Only one person/team benefits, the one who made/controls the group (and maybe a few others using very fast bots)