Why? This is completely useless.
I assume people would be intelligent enough to create folders themselves if they wanted to sort their files.
I'm already generating links for both at the same time(you should set that as the default instead) so I can choose right away which link I need instead of having to move all the files to a folder, open that folder and then select the files and show the links.
As for banning people who share extreme content in k2s, the links are still the same for both so there's no real distinction between the two.
One file is always both from k2s and fboom and all files show up in both accounts so how do you plan on enforcing this? Someone with half a brain could change the links manually to one or the other if they only have one premium account, regardless of what I originally posted so even if I post all of my extreme content as fboom links, people could decide to change them to k2s so they can use their premium accounts and I my account would get banned because of this?
If you really want the two separate, then you need a way to generate separate links that are not interchangeable, not do a half-assed solution like you currently have.