9 truths with 1 lie could make that one lie become truth. If you are making profit out of it then that's good for you. But it's not a good idea to advise others to get involved into something like that. And they are kind of scanning others right? When a group of people pumps a certain crypto, people are going to buy it seeing the pumping price. And they just sell all of it to make profit out of it. Aren't this gaming people? If you think scamming people is a good thing then you should carry on.
Now let's talk about the nine truths and one lie. Imagine they are pumping every day and you are getting profit everyday by following them. Now you have trusted them blindly that they are going to make you profit. And then they create their own coin and tell everybody to buy it and they are going to pump it. You follow their lie and buy the coin. You lose it all.
That's how it goes. They will show you nine truths and they will slide in just one lie which will take you to the street. Don't fall for such thing. Trade on your own. Learn how it works and it will come in handy in the future.
I have never heard a story about a pump group having their own altcoin. I know these groups are created to scam people who are lazy enough to learn about the market and trading but these groups usually provide signals to low-cost altcoins that are listed on top tier exchanges so that they can be widely accepted by their group. Listing on a top tier exchange is expensive and managing and providing liquidity for that specific coin makes it even impossible for a pump group. If you think they can use dex to do that then they need to generate massive volume there as well to convince their community to buy that token.
I have seen signal groups sponsor trade by taking money from a project and promising to promote their project in their community and convince their followers to buy that token. This is a common case with such groups, and their blind followers buy that project when the project team dumps their tokens to those pump group investors.
I was once in a pump and dump token type group but the results were not good, I actually suffered quite a big loss because they suggested joining the VIP group to get better profits, so I left the group. For the OP, if the group you are following is really able to provide accurate predictions and information regarding the next price of the token they are planning then you can help the members here by providing screenshot evidence before the prediction and the results after that.
This is the business model of all the signal groups. First they convince you to join their paid group then they will offer you a premium package to join their other VIP group. Even some groups sell their courses to their VIP group members by adding some extra fees. Someone can be so blind as to fall for such a group.