Need to go back to the first post. ( I plead guilty to forgetting that )
What is missing is the OP is using Gimp 2.8 and from memory Gimp 2.8 had issues reading that parasiterc file.
One solution might be a 'export with set jpg values' script or plugin. I have a 'quick-n-dirty' plugin I use for reduced quality screenshots that go to imgur, not very flexible, dumps the top layer to a jpeg using the layer name.
Ofnuts has a quick export plugin, maybe that can be adapted.
edit
@ programmer_ceds
Anything you can suggest ?
What is missing is the OP is using Gimp 2.8 and from memory Gimp 2.8 had issues reading that parasiterc file.
One solution might be a 'export with set jpg values' script or plugin. I have a 'quick-n-dirty' plugin I use for reduced quality screenshots that go to imgur, not very flexible, dumps the top layer to a jpeg using the layer name.
Ofnuts has a quick export plugin, maybe that can be adapted.
edit
@ programmer_ceds
Anything you can suggest ?