As an iOS developer, I sometimes receive emails from some brazen enterprising person with poor spelling and grammar inquiring about the possibility to "borrow" our company creds for registering an iOS enterprise developer certificate, usually with some nonsense explanation like "helping them out with their beta testing needs" (as if testflight doesn't even exist) and that "it won't impact your app store apps" (ha!).
Of course these emails go straight to the junk folder, but it is very apparent that there is a demand and a black market for iOS enterprise distribution certificates, and people are willing to beg, borrow and probably steal such certificates in any which way they can.
Dishonest people. Con artists often target the dishonest and greedy; people who understand that something is a pyramid scheme but think they can get out with a profit before it collapses. Or perhaps in this case, somebody who thinks the future business potential for their enterprise cert won't be as profitable as selling use of it to shady people.
Of course these emails go straight to the junk folder, but it is very apparent that there is a demand and a black market for iOS enterprise distribution certificates, and people are willing to beg, borrow and probably steal such certificates in any which way they can.