They can re-sell the hashlet immediatly in the hash market.
They get 0.005 , me too (50/50)
Where's the problem?
Well, I'm not criticizing your business model - seems profitable enough, if you get a lot of people joining and buying.
What I was criticizing was the way you (and the several others, in similar threads) framed the giveaway - you don't really need an invite to get the free Hashlet, if that's all you want. But at least you actually have a giveaway going on here for part of the purchase bonus, contrary to many of the others.
I don't receive anything sending invitations..
Just when they make their first purchase,
I receive $4... and i'm paying $2 (50%).