couple years ago when grin went public on the market it was supposed to be the next big thing. I read little about it back then and a lot of big guys on CT where enthusiastic about grin. I remember reading that litecoin was going to implement their protocol in Litecoin but looking back now their market price dropped like 99% and it has died pretty much. So what happened ? Was it just a big pump and dump scam or has it really some potential that is overlooked?