It may also be possible this needs a fourth revision.  If you (willkmis) believe there is a tagging scheme (with the nodes, the ways, the suburb and the relation) superior to the way I have done it currently, you are welcome to improve it from here.  And perhaps we can all learn something about the best way to tag such entities.

It is getting better in (southern, especially) California on how to "do these" (census tracts, which are non-administrative, cities and towns, which are, small towns/villages/hamlets which are unincorporated and have no boundary and are best mapped with a node...).  Maybe we aren't "all perfectly correct" today, but it is getting better.