its BBbrine on my sisters account as mine will never work, that out the way.

I'm writing to say I got banned because I scammed now I while back I saw Kubsz allow scamming in chat, now today just got banned I sent a scam message saying someone had paid me -1000000 (basically what I said) and this was seconds before someone got banned for scamming I'm just wondering is this bannable since I didn't know?