Can we ask for more privacy features in forums to feel more secure?

[Brakkarion-wyrmrest-accord]

Will I get ban if I open two WoW account from different battlenet?

No, just through letter of the rules from our EULA you can have up to three Battle.net Accounts in your name. And, while you can register and play on multiple Accounts, you are not allowed to have more than three (3) Accounts with Blizzard Balance. Assuming you aren’t exploiting, or logging into multiple WoW licenses from multiple locations at the same time, there shouldn’t be an issue.