Which site you are talking about and proof of what? Did you even read what is the main topic here? It is not an announcement thread of a gambling site, OP is only asking for a strategy to win 0.1btc in 30 minutes.

All of those point occurs because lack of knowledge from people who have not studied cryptocurrency, just judge it by the cover.
But, one thing for sure, most countries across the world does not have detailed policies of regulating bitcoins usage and bitcoin still in the beginning of development and soon or later Government will regulate bitcoin or let citizens use it.