"as is" (Score 1)

The majority of open source software is provided "as is". No warranty, no offer of support, etc..

So, to answer your question: Is an open source project obliged to provide support for its users? No.

While often a community forms around an open source effort, and that community collectively supports its members, there is no guarantee that all requests for support are fulfilled (especially in a manner which pleases the requestor). If you want a guarantee of support, hire someone.