Beta weekend question
Effectively, your real characters and beta characters are kept on two separate accounts under the same name.
Your beta bank slot is separate to your real character bank slots, so anything that you use from your beta character’s bank will not be used from your real character’s bank.
So you can use those skins if you wish, as long as you are taking them out with your beta characters and not your real characters. Further, all gold on your beta characters will disappear once Heart of Thorns releases, so you can spend that as much as you want, without it affecting your real character’s currency.
Do note that skins and other items you unlock on your beta characters shouldn’t appear on your real characters (I haven’t tested this, so I don’t know for sure) with the exception of the ‘???’ item bug.