Yes selling signals is a 0 risk income which of course is why there systems are not as good as they say from the begining because there is risk just like any other system that is free.
If they are selling it that means it "might" make a profit, hit and miss like all other, and is why they dont wish to risk there own money using it.
In reality if there system was so good like advertised in there false advertising they wouldnt need to bother selling it.
Thats 100% logical and there is no argument to it whatsoever, even made up lies do not answer that question "why are you selling it then".
Most ive found are nothing more than newbies that have found some thing to market and always lie that they are so experienced etc, alot have lost money trading there system and are trying to make it back
I think trading financial markets is hard enough without a bunch of sharks floating about trying to take more money off people from giving them false promises.