I can say why I left, despite really loving WWI planes:
I was having a blast for a week, and then came the burnout. The gameplay, or to be more precise: the lack of gameplay quickly got old. Still, I would spend a few hours per week there if I could find 30-60 players there, not 0-2.
Well the 0-2 starts with yourself and others making an effort to call in once in a while

I don't understand how you would change the gameplay if you would care to eleborate on that lusche?
As far as I see it, its a purely fight orientated arena theres no real escape once combat begins, this should have delighted the holyier than thou 'its all about the fight' brigade but it just showed me once again that 90% of them are full of horsedung

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I remember a lot of complaints about ganging etc, but to be honest you've a lot more chance of surviving a mass ganging in the ww1 arena than the MA.