Traded 100k, 10 hours ago - economy ban ^^. Friend who was in guild with me (only while leveling) got same ban too however he did not trade or even pick up any gold from gb.
not unlikely if you got hit with that hwid. if you have sth like 10 bots in a guild and 1 other acc its pretty common to wipe out all accounts. furthermore if you trade with chinese the ban rate is higher, i sell only to private buyers, no problem but i shuffle my accounts or use gb.