Earlier quoted context omitted.
So they track this down to some guy in Russia. Then what? Tracking down these types of criminals is probably the least effective things law enforcement could be doing because it's quite time-consuming and a lot of the time it gives you no concrete result.
I am not confident that 100% of these instances are "some guy in russia". Is it true that these scammers in question were? Or that LEO tracked them down at all ? Or did anything meaningful? I agree that we ask LEOs to enforce the law, and doing so is a lot of work. There is, though, quite a large discrepancy between what we ask them to do, and what they do, so it remains to be seen if they are doing a lot of work, an…
And even if they are in the US, it's not that hard to be reasonable untrackable with minimal skills. People make mistakes, and maybe every now and then you might catch one person. Whoop-die-doo. It's just not effective or reasonable to track down every single case in depth.