Or the second option is that he is trying to hide that information from newbies because he knows they are not going to make any kind of deep research on the subject and they will begin margin trading despite the fact only experts should use it due to the enormous risks they are taking.
I'm pretty sure that the most traffics of these websites are coming from newbies and other people that are even a little experienced know that with leverage trading they're not going to get rich magically overnight, when you trade cryptocurrencies on leverage you either lose a lot or gain a lot very fast and you can be certain that if you are one of those lucky people that gained a lot at their first try you will not just stop there and say I'm done, and you will keep trading more until you are one of those people that lost a lot of money by leverage trading without calculating the risks properly, so if you are looking for any real long-term success in trading start thinking more reasonably and ignore any kind of trading that involves that much risk unless you have absolutely no problem losing it all in one bad trade.