Arsenal's policy will pay off sooner rather than later, I think. I'd rather it didn't, but their debt incurred in the Emirates Stadium build has almost been paid off completely now, if it hasn't already; I know it was almost done with recently.
I have, admittedly, been one to mock Arsenal's barren spell in the past, but it seems a lot has been made of Arsenal's 'failings' recently to detract from their own club. Personally, as United fans, I'd be more worried about how they are going to compete financially in the future with Arsenal unless this debt of yours gets cleared up quickly.
When The Debts get too big for the glazers to handle, We shall be saved by a random Billionaire, as you see, we have created this thing called a "brand" which makes us a commercial giant and can stand toe to toe with nay company, football or not in the world. When this billionaire clears our debts, our brand will make us so powerful, with FFP, no-one will be able to compete with Manchester United, and we shall blow everyone out of the water. So Utd fans worried, not in the slightest. We know our club is safe and as much as you or anyone else might protest, deep down you know we shall be fine and dandy.