Those other lists of 30
Larping is Live Action Role Playing. Instead of sitting around a table, play is done “in action”, up and moving about. Any resolution besides social ones are done by some “lite” mechanic. It can be a great deal of fun.
In some virtual forums going AFK is the equivalent of passing out drunk on the couch at a fraternity party. Everyone from hackers to everyday participants will take shots at you, and you can expect your avatar to look very different when you get back. Hopefully you will notice quickly.