Nostalrius Begins - Quality wow vanilla realm (1.12)

Hello there at first i would like to apologize for late answer, the hollydays and beggining of exams made me delay this.
Today i logged in after break and realized that friend of mine got banned. I just got idea to check forums for some more details about that because i heard rummors from guildies that they though that we got both banned for same thing and found this topic: https://forum.nostalrius.org/viewtopic.php?f=65&t=30176&p=210618&hilit=orich#p210618

I'm not sure if there were any other trades than that one mentioned in topic above, but if he got banned just for that 150g, i can confirm that i borrowed him 150g and he gave it back to me few days later.

Bump.
P.S from what i've seen there are other people complaining about being banned for this, if it's banable then why don't you just put it into rules, so people are aware of it?

P.S2 why didn't i get banned aswell, when we both either recieved and gave away 150g in matter of 2-4 days?

If he was banned for something else than that, or you want some more specific details regarding those trades (i guess that i can remmember my character name and probably when i gave him gold and when i recieved gold) just let me know and close this topic so i don't waste more time bumping and checking it for your responses, anyway thanks for attention.