It depends. If the server is crowded then, the trades are more hard to trace. Just create 20-40-60 accounts and pass the items with trade from char to char all time. At the end the traces will cease to exist. If an Administrator takes his time to investigate, then the trades will be lost from the logs.

ya i know, but first time i see admin banning even for website 

ellhnas69tensor 12 y old grown up kids

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But I'm guessing that with simple filters the admins could remove most of the noise even in Giran, or maybe I didnt fully understand.