This project are just the product of hype and they are using the investors money that they accumulate on IDO just to list on Binance. Project like this spend so much money on the requirements of exchange listing and totally forgot the development process that result of slowly dying of the project due to lost of interest. Many scam project use big CEX as there end goal before they abandon the project and move to a next startup project.
Unfortunately you are right about most projects that do this. I am not saying that betfury is doing that with BFG, I wouldn't really know and I am not here to speculate about that token. But I guarantee you, I have worked with places that spent hundreds of bitcoins, literally tens of millions of dollars, just to be on Binance so that they could screw people over.
Well, they have so much of the token as owners that when they got listed, they just dumped it and that means since it was on binance there were buyers who were excited about a potential new coin getting listed, hence when they dump it, the price didn't tank too much like it would in another exchange.