Hi Paul. First up, thank you! I love your work.
Second up, I apologize if any of the following comments are addressed in your support docs. I looked through and can't find anything. I have just a few questions / suggestions, if you don't mind.
1) Does the plugin have a leaderboard shortcode I've missed? I'd like to create a page which ranks my users by karma points, essentially creating a top ten list (or whatever) of my most engaged users.
2) With the list of achievements page, I note that it sorts alphabetically. This logic isn't optimal imho. It'd be great if I could sort it by karma points or by user defined rank.
3) Would it be possible to create a link that goes next to a persons avatar pic in comments that allows people to click and see what badges they have earned? It'd be great if users' achievements could be visible in some way next to their comments.
4) Any chance of a widget which lists a users achievements in the sidebar, and also incorporates an optional link that goes straight through to a leaderboard? In other words, the user can see their achievements in the sidebar (perhaps with tiny thumbnails of badges?) and can click to go see their rank.
5) A super awesome feature would be the ability to create a page within your plugin that maps karma points to various rewards / privileges. (ie if you have earnt 25 karma points you will be granted access to a new area of the site).
The absence of these features in no way detracts from the awesomeness of what you've achieved with this plugin! Thanks so much for your efforts. I love it.
PS. Oh one final question - with my achievement edit screen I cannot enable featured image (even under screen options). Any theory on why this might be? It doesn't greatly affect me as I can simply insert a badge image, but I just found it odd that it does not appear.