Everything Else
I don't know about Discord, but RPoL has never been a place where Ars magic runs long.
I personally think that this is due to several factors:
- AM is such mechanically diverse and dense system, that its easy for a GM to get overwhelmed, especially if they sandbox it and have a lot of players.
- RPoL is fraught with attrition
- The more player one has, the more the game gets bogged own in opinions and arguments over the rules.
In my opinion, keeping the game membership small, and limited to only the base rulebook (or a small handful of supplements that directly relate to the game one is running) has a better chance of success.
Also, the GM needs a very 'My way, or the highway' hand in the rules: Keep it simple, and take control.
But thems just my opinion.