Mark some of your forum as UserVoice forum for allow users like/dislike threads on it. UserVoice forums marked with lantern icon at news feed. At forum view staff answers should be poster below thread (see screenshots).

Technical description:
Extend forum class by flag for make it voteble. Create uservoice reactions and allow use it for threads. BB code for add thread status to post

Migration from XF2.0 version of addon:
Just upgrade addon with new files. But please, make backups, i give no guarantees all should work fine

This is XF2.0 version
Screenshots:


Uservoice Forum View


Staff answer



News Feed



Thread Edit



Forum Edit at admin panel
This is XF2.1 version:
Screenshots:



Uservoice Forum View


Thread Edit


Forum Edit at admin panel