Controversial idea : OK so tell me why this idea is nuts!
I like to see services composed by message passing. I would like to loosen up restrictions on the JSIP RA so that SBBs may create listening points and providers on local host. This way you can compose services by just using SIP Requests locally within a SLEE rather than use SLEE specific mechanisms such as address profiles and shared activity context. This is more intuitive to SIP programmers.
So tell me why you all hate this idea ( I am sure I will hear groans).