https://gvectors.com/product/wpforo_mentioning/
wpForo – User Mentioning – gVectors Team
user mentioninggvectors team
https://addons.wpforo.com/community/wpforo-user-mentioning/wpforo-user-mentioning/
wpForo User Mentioning – wpForo User Mentioning – wpForo Addons Forum
wpForo User mentioning addon is a lightweight solution for wpForo forums to easily select users when you want to mention them in topic and post editor...
user mentioningwpforoaddons