Originally Posted by
_aax1
Those stations aren’t served by Greater Anglia, so in theory, it does stop at all stations.
In theory GA could serve them as the infrastructure is there, indeed a few of them are served one weekend or so per year coinciding with a major festival. Not sure if still the case but Gidea Park has been a mainline stop on one of the last trains on weekdays. Romford is a regular stop throughout the day.