I hear it talked about it a lot, that some aspect of a game is immersion breaking, but I honestly don't really get it. To me, an ooc channel, or pages, or discord, or skype are no more, or less immersion breaking than the others. But that might be because when ever I roleplay, out of necessity, I'm also usually working, doing house stuff, dealing with kid, and 101 other things. Any OOC channels or other things people consider 'immersion breaking' is the least of my concerns when it comes to RP.
Admittedly, I don't like spam on my screen between emotes, but I deal with that by diverting channels into another window, but that's less about immersion and more just my own personal quirk. That's not just channels but score, who, and anything that might spam a screen.
I think the closest thing I can think of as being immersion breaking for me, is when something is very un-thematic, such as on a fantasy/medieval setting, people fist bumping, high fiving, or slapping people on the ass and referring to very modern slang.
I'd be curious to hear what immersion means to the various people that play RP MUDs and MU*s. Is it about distraction? Is it about losing yourself to the story like you would a book? How is it that some aspects of communication break immersion? What other things break immersion for you?
Is immersion largely an RP MUD concept or is it used a lot on MUs too?