When you get excessive joy over your own post on Facebook. I've "posterbated" in a way, I suppose, by using joint-posts (posting two characters in one post) or by having multiple characters in a thread (in a
case in which they would have to interact), but that'
s not deceiving or even done for my own entertainment. I do that because it's necessary for the scene/plot/etc. Because I'
m both a writer
outside of roleplaying and an avid roleplayer, I
don't find it to be difficult at all to write my own characters' interactions with each other.