A better example for what they’re talking about might be something like a news story about something terrible. According to one paradigm, you would upvote the post for visibility. According to another paradigm (the Facebook/Friendica paradigm), you would dislike the post to express your disapproval of what’s happening.

UnReal World is a free, survival-focused roguelike rpg that came out in 1992 and is still actively being developed and improved. It’s got a lot of depth and a very cool fantasy setting heavily inspired by Finnish folklore (the developer is Finnish).

I highly recommend it if you’ve got the patience for an in-depth roguelike rpg.