this happens all the time in bitcoin world..
all these websites claim to pay interest every day are ponzi schemes. Most cloud mining services are ponzi schemes. People need to understand there's no "free money".
if it seems too good to be true, it probably is.
It's happening but with a little percentage and not all of the kind of bitcoin site(mostly HYIP and CM). And a lot of the reliable site news at the past time turned into the shady caused by that reason.