Well, first of all, they are using one photo of Steve, and one photo of Corey DePooter (claiming it is another photo of Steve) to make their "comparison".
Secondly, the databases being used (like Radaris, Intelius, etc.) are often erroneous.
Also, people can pay to have their information removed from some of these sites. Others do not even charge a fee, you just have to go through a somewhat laborious "opt out" process that may take a day or two.
So, in my personal opinion, and with my personal experience thus far, this is a very haphazard, sloppy "investigative" video.
I constantly look into videos and articles of this nature concerning a plethora of subjects, and in fact, there are some theories concerning particular subjects that I find much more truth in than the mainstream spin.
So I am not instantaneously writing this off simply because it is a "conspiracy theory". The fact is that it is not well researched at all, as the individual is not paying attention to dates, let alone are they using the correct person's photo throughout.