Thomas Shey
Legend
The hill I'll die on is that immersion is not a universal end goal, or even always a reliable or achievable "state", for roleplaying games. I think it's general importance is overblown and as a result, it gets focused on way too much. Personally I blame this largely on Usenet (rec.games.frp.advocacy in particular), which is where I encountered it being used as a metric for "good games", but I'm sure it's been around longer than that.
Its often simultaneously the excuse for, and the logical end-state of, people who actively hate anything they think smacks of "metagaming" or things like Author stance.
Edit: And I should note that especially when I was younger, but even to some degree now, I sometimes like(d) to play in an immersive manner when it seems practical (though I'm not actually sold FTF gaming is the best way to do that).