I don't see the purpose of terminating at Dalston Junction. Its
nowheresville.
Even if you want to get the NLL you have to walk to kingsland. Why doesn't
every train just go to highbury which would be a lot more useful? Its only
another 2 stops. It just makes no sense whatsoever from a service or
passenger point of view.

I'd be interested in knowing the answer to this too. If there isn't a good
reason for this not to happen would this also mean there was never a good
reason for the two bay platforms at Dalston Junction?