Well I do want to be able to have a multiplicity of new clients, as I argued before in this thread: I want to be able to have clients with different identities to log into different servers. For example to allow servers to do simple access delegation this is a very useful method. See [Extending the WebID protocol with Access Delegation](http://bblfish.net/tmp/2012/08/05/WebID_Delegation_final_version.pdf)

If you can show me that something can go wrong with multiple clients then I'd be ok. But I am not sure what can go wrong here.