Of course they would stop responding because they are scammers, they are happy to steal other people's money, they already have many complaints and the scammers doesn't show up to respond, I'll add another negative feedback to the scammer's account
You surprised me by how much time you devoted for your reflections. Your speech is stuffed with eloquence and arguments. If your negative comment will be also so inteligent, I'm sure that it will be the nail in the coffin for 1xBit!