It's not allowed but merely suspecting without any proof that items are being purchased with fraudulent cards likely isn't enough for us to remove threads.
I say guilty until proven otherwise.
Typical american system. In our place doesnt matter if you're guilty or not, they start treating you like a criminal right from the suspected criminal list.
That's not the typical American system. In America, court system works pretty much independent of whether you're guilty or not. The person with the better lawyer wins.
Anyways, it's obvious that purchasing fraudulent goods and accounts is not desirable since it means that such accounts could get taken back. So if you know someone is doing such, just post in their thread that it was all bought using a stolen card and people will likely avoid it like the plague.