How to prevent RP games from failing

Roleplay is an exciting and enjoyable game that provides more realism (by including diplomacy and international rules) than any other game in atWar. The downside? Noobs and quitters. Especially quitters. Today, the success rate of RP games is hardly ~1/5 which is HORRIBLE. Since RP maps are played with 20 players, the chance that somebody will quit is pretty high, BUT there are ways both to lower it, as well as ways to prevent quitters from ruining the game.

It's time for Rankism!
This is probably the most pronounced issue in RP: hosts want to be nice and let low ranks play, and the chance they'll quit is EXTREMELY high. As a result, RP games don't last long in most cases. Remember the days you were playing in beginners' lobby where everyone was low rank? It was horrible - 50% of the players quit on the first 3 turns and it wouldn't take long until the rest do as well. If you don't want RPs to be the same, simply don't let noobs in.
The solution? Be rankist. Here are the rules I recommend to follow:
Minimal rank: 5
Major countries (UK, France, India): 6+
Superpowers (USA, Russia, China, Germany): 7+
Obviously, there is the exception of known good low rank players.

Why set higher ranks for major countries?
Quitters aren't the only problem, noobs are a problem as well. When a noob plays as major country, say Germany, it totally ruins the balance of the game. Russia has no real threat from Europe, minor countries will find a reason to fight that noob Germany and the game quickly turns into a mess. The superpowers are the backbone of every RP game, so let them be played by good players.

Stop mass-leaving
Host is not the only person to determine whether the game will fail or not. The players also obviously take part in it.
What's more annoying than someone randomly leaving the game? The entire game mass-leaving after him. This happens a lot: one not so important country quits and the entire room spams "REMAKE, GAME FAILED".
Like, seriously, if 1 country leaving is enough for you to state that the game has failed, how do you expect a remake to fix the problem? The remake will be exactly the same, so instead of crying just split the lands and keep playing. Well, unless the quitter was a superpower.

Don't gangbang
Gangbang = -1 player, map becomes mess, the war's result is predictable. Quite ruins the entire meaning of the game. Of course, gangbangs will always be done, so rather than just sitting in the corner and doing nothing (or worse - joining the gangbang), help the gangbanged player and make it 2v2 - or even a world war. This adds a lot of action to the game and makes the wars real.

Benefits
• Less quitters
• Less time wasted
• RP games will have higher success rate
• RP games will be more enjoyable