Whenever I've done lists like this, I make the first-load randomise but give the user options to reorder the list in various ways (alphabetical asc/desc, latest

Whenever I've done lists like this, I make the first-load randomise but give the user options to reorder the list in various ways (alphabetical asc/desc, latest activity, etc). I think that's the best way to stop too-blatant gamification.