Transfering Items/gold to your "clean" account ?

[Poxinou]

Hello,
I recently discovered the botting world and i got many fishs in my bags.
All is good till now, but i was wondering how to transfer those fishs to my main account as i'm botting on a secondary acc who's dedicated to it (risks of bans etc.).
I heard a friend who told me that a transfer via guild's bank is good, but if there's only 2 characters in the guild, that doesn't really makes sense, i mean it's too obvious.

So my questions are here :

1. Is it risky to send my stuff directly on another character on my main account ?
2. If yes, what is the safer method ? The one you use ?

Thanks in advance,
Regards,
Poxi