We ran across this gem. It's called Bitply, and just like all of the "bitcoin multipliers", it's undoubtedly a scam.
These guys haven't gone for fancy websites, billboards, commercials, or press releases. This is good old fashion grass roots style forum posting.
Here's part of the post (edited for space and contact):
...Bityply is a service that allows you to multiply your bitcoins. Bityply takes advantage of malleability issues in the bitcoin transaction system in order too multiply your coins. Sometimes the output varies but there is always and increase on the initial amount. ... go to our FAQ...
...How do i know this isn't a scam?The truth is that there is no way other than using the service that we can prove this too you, we have had tens of happy customers go away and come back to bityply their coins.Why host this on a .onion, why not on the clearweb?The reason we don't host this as a clearweb site is that it would probably get a lot of attention, which may sound like a good thing, but would probably result in the exploits we use being fixed. Also we may get unwanted attention, possibly from law enforcement, but don't worry all coins are tumbled so that they can't be traced before being sent back to you....Will the coins be traced and taken off me?No, all coins are tumbled before they are sent back meaning that they can't be traced...
There are so many things wrong with this I don't even know where to begin, but if someone has to convince you that it's not a scam, it's likely a scam.
Other clues are the intent of eluding law enforcement, the "tens" of happy customers (a warning right there), and of course, the complete lack of credible anything.
We won't waste too much time on this one, it's pretty obvious. It's a scam, or bad enough for your health to be treated as one anyway.
Even if it worked....
This leads me to the next point, if you insist on sending money blindly to strange forum posts expecting instant riches, you should still avoid this particular offering. Why? Simple, anytime you are dealing with anyone who is trying to hide from law enforcement, advertising money laundering (tumbling), concealing their efforts on the dark web, and/or trying to guarantee the funds will be untraceable, it's pretty much a bad start from the beginning.
Not a sound investment in my opinion. Like I said. Avoid.