The strengths and weaknesses are already up under Interesting facts.
Definition of meta gaming(this is copy pasted, the answer is below that)
Metagaming is any strategy, action or method used in a game which transcends a prescribed ruleset, uses external factors to affect the game, or goes beyond the supposed limits or environment set by the game. Another definition refers to thegame universe outside of the game itself
This ruins rp because it can make the game really different in a bad way. Ex. 'We are being overrun, log on and help me' A shout out to friends just for the sake of winning can ruin gameplay and cause argument and chaos.
Sorry, I have a job and am really busy right now. Can you please take this into consideration please. I have limited time, but can still go on for 1-3 hours a day. Hope this does not cause any trouble. Please take this into consideration. Thankyou , have a nice day.-CatOnWheels