@Lithium said:
Person A comes back, puts up a post about how they've been missing since whenever, they're killing the character off, or their character is just disappearing indefinitely.
People who do this suck. I had a case where a player of a character that my character played with fairly often up and disappeared for a couple months. I played it off by avoiding conversation about the character. When specifically asked, I played it off as they were still around, just busy, etc. The player comes back with a story about how they disappeared and all this horrible stuff had happened to them. So now I'm in a situation where my character looks like a complete dick because he wasn't worried about the other character being missing.
Long story short... if you take off unexpectedly and without any sort of attempt at communication for months, please do not come back and say all this angsty, horrible, dangerous drama-llama happened while you were away. It's not fair to the player that stuck around.
Of course, all this can be avoided by taking 30 seconds to drop a quick @mail saying that you won't be around a while and please assume blah. Or, if you are in a situation where RL is prone to happen and you have absolutely zero internet access, come up with a back-up plan. I've done this with people before. "If I ever disappear, you can assume blah."