The same reason that the Arab League supported the Taliban, which used al Qaeda as its Praetorian Guard, and provided training grounds for aspiring jihadists - as long as it's not within their respective countries, it's not their problem. There's also the possibility that the Saudi King Abdullah (who likely nurses a grudge against Gaddafi because Gaddafi tried to have him assassinated in 2003) has bought off all the other Arab League members with large gifts of cash.
When our pilot was shot down, how come the rebels served him tea instead of chopping off his head?
For the same reason that Stalin accepted Lend Lease aid in WWII. Our adversaries are always glad to accept our help against their adversaries.
Taliban Condemn Attacks on Libya - KABUL, Afghanistan — Col. Muammar el-Qaddafi has at least one good friend in the outside world — the Taliban in Afghanistan. "The Islamic Emirate of Afghanistan strongly condemns this politically motivated and uncalled-for intervention and adventure by the Western countries in the internal conflict of the people of Libya..."Do you have a theory to explain why that is?
Are the Taliban now "good muslims" along with Khadafi, while the evil Saudis are the bad muslims, because they supported the Taliban?
Is that what you're trying to say?
Personally I'm all for bombing the holy hell out of Libya and I think we should bomb lots more muslim countries too.