I'm quite confused here, maybe cause I'm still leaner in all these, but what is Btc grinding? I am seeing some people mentioning poker. Is btc grinding a poker game or what? But based on what the op has described here, it doesn't seem like it is that, cause he said you add a website on their platform and when you successfully add a website you will be credited with $10. So what's this exactly and how is it being done and is it being played for free or will I have to invest money before taking part in it.?