Or bought with a stolen credit/debit card.
In that case it is even worse.
It's really a 'big problem'

That depends. Do you want to make this forum a nest for hackers and associate Bitcoin with them? If so, then there is no problem at all.
I don't want, why should I ?
I might have incorrectly expressed myself here (it's still too early for me). If there are indications that the goods are stolen/hacked then I will remove them until there's some official clarification (around here).
Oh ok, now it's more clear.