Contact with developers

[Sasha]

I surf the net a lot, register on many forums and sites (in different languages !!!), and I can clearly see users who are selling licenses. It has already reached the point that they open their pages, on blogs, on sales, put their prices on different software, I think this is not a secret. It looks something like this if a person wants to buy a license, he wants something to be registered on his Email, so the seller turns to the developer to change the Email. The Promo2day forum has problems with developers because of this. 

Question: Why the hell are such users needed here?

Licenses for users who really need it.