Mystery solved. Turns out the sky is not falling, just someone doing shady things.

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guys, do not pass your gold between your multi-boxers in wow, I got a ban because of this (only on 1 account out of 4 remaining, but I did the same with the others) im farm only dungeons(10 days) and when i lvlup60 i have already 2k gold in total from my all boxes, and i give 1 main account and i have on main 2k gold, but he didnt get banned, but got a ban my character with whom I took 600 gold.

I also created topic https://us.forums.blizzard.com/en/wo...-ticket/295688