Messages and Player Visibility

What if WeMod had a Message feature? It could be useful for other people who are playing the game, and also, another feature could make players who you know from the friends list on Steam, and other game engines, be able to see you when playing the same game. It could be a fun thing, from messaging friends, to seeing them play with you! It could come in handy, instead of opening another application, and installing a multiplayer mod, not knowing if its a virus.