@Shasan After listening to you, I understand that one can use many accounts in this forum, but not Bounty Campaign/Merit Transaction/Trust Exchange. Doing so will force the forum to tag the DT member account.
You can operate as many accounts as possible. And on the same way, there is no problem if you join on bounty campaign or signature campaign unless the campaign manager/bounty manager mention they will not accept alt account. If there is no restriction by the manager then there is nothing wrong.