There's no such thing as a "good" pump group. It's only good if you're actually the owner and the one making calls/signals. Before the owners/admins pump a coin, it's almost guaranteed that they've stocked up beforehand, so they can sell on the way up.
Exactly, pump groups are essentially just groups of thieves, I had been invited to join a few and always refused. It's essentially stealing from others and there's no justifying it, regular trading is completely different.
This is actually a good topic to discuss.I believe that bitcoin has made so much impact in the lives of many.It gives so much advantage,though it is also unbelievable that this has not been known to many yet, it may sound strange to them or others might be hesitant to join and invest in bitcoin,maybe because they are afraid to take the risk or are not really aware on how does it work,its functionalities,features and more or they are not simply interested.Willingness plays a vital role in this campaign.I believe that bitcoin is a good group and will always be.Only us can make it flourish,sales may rise and fall,it may fluctuate but the crypto stays and continues and whoever willing to stay despite the fluctuation will be blessed.
I think there is a language barrier because what you are saying doesn't make sense. You're referring to investing in Bitcoin and cryptocurrency as a whole. This thread and my post Re about pump and dump groups which lie and manipulate markets to fool people.