I need to be able to post question, also support drupal.org

Hello @vanphat_92, Are you having troubling posting to Drupal.org because of spam guard?

If that is the case May I suggest you visit https://drupal.org/node/1887616 for information about how a user account is confirmed. Right now your accounts do not have sufficient activity on Drupal.org, hence awarding this role is a bit of a challenge. Please keep contributing content in Drupal.org then this issue will be revisited (or) you will get the role automatically. In case if there is a need for revisiting the issue, I suggest you reopen this issue with a necessary comment rather than opening a new issue. Thanks and welcome again for Joining us!