Yep. Nachtfalke and poparamiro are in the same team.
Only card posted here "shared" between them is HD4870. He could easily sell him the card, submissions are not in a 3-4 days interval.
The card could be different as well.
So, what about selling a card to a teammate, does it count as sharing (rules don't say anything about it, or I can't find it)? Asking for a future reference...I don't have the habit to sell anything benched if it's only one from a model