The popular add-on [bd] Tag Me has been updated to work with XenForo 1.2. This version only works with XenForo 1.2 and upwards. The v1.x branch will be maintained separately to provide bug fix and security update. All features from old versions have been kept. Most of the add-on has been rewritten to take advantage of new features in XenForo 1.2 (template modifications, user tagging recognition, etc.) Also, alert and email duplication should be avoided better. Below is the v2.0 release. It will be uploaded to xenforo.com soon.
This has been released officially at http://xenforo.com/community/resources/bd-tag-me-for-xenforo-1-2.386/. Unmaintained - [bd] Tag Me for XenForo 1.3 [bd] Tag Me for XenForo 1.3+ Better user tagging [FEATURES] 1. Tag many users at once with @user_group syntax. 2. Tagged users will receive alerts and emails (system and user control)... xenforo.com