I'd avoid these pump groups because by the time it starts pumping, they are already dumping on you. They own the coin way before they announce it in the pump groups.
I agree.
If there are legitimate pump groups, they're a few whales who are used to manipulating the price and are heavily experienced. It's very unlikely that these groups would actually publicly announce their shady activities, so I would assume that any pump and dump website offering a group for newbies is a scam.
It would be so easy for them to just a buy a coin, then point and watch the newbies panic buy while they can safely sell out of it.