Bear in mind the actual content will still be free, the thing these enterprises will be paying for is a customised feed and support infrastructure servicing their particular requirements. Would you be ok with your donations being used to pay for a feed service and support dedicated to, say, the particular needs of Google search results, or Apple's Siri?
It also depends if you consider it's core mission is just English Wikipedia. Expanding into additional languages and keeping the content consistent between languages is a huge undertaking that won't work on a purely volunteer basis. If this dependable revenue stream can help with some of these other very capital intensive but worthy initiatives I'm for it.
It also depends if you consider it's core mission is just English Wikipedia. Expanding into additional languages and keeping the content consistent between languages is a huge undertaking that won't work on a purely volunteer basis. If this dependable revenue stream can help with some of these other very capital intensive but worthy initiatives I'm for it.