Hm.. I have to rethink my support stance in this matter.
Have you seen these @maui?
Seems KiCAD was missing this 'workaround-the-specs' feature until 2014?
Also, the gerber specification is the source of this bit:
This option is called "bad practice" in gerber files format specifications and is even forbidden in gerber drill files
https://www.ucamco.com/files/downloads/file/81/the_gerber_file_format_specification.pdf (page 141)
OSH park and any other board house is clearly in "violation of the rules" set forth by the gerber specifications and this kind of behavior is definitely frowned up on.
Now I understand ideal vs real world and in the end the finished product counts, but it's pretty clear who is to blame here.
The version of GerbView that comes with BZR6097 doesn't have the option of exporting gerber files though.. or it's a different program, dunno?
And some more googling found this bit ( https://www.reddit.com/r/KiCad/comments/2av8bl/nonplated_through_holes_with_osh_park_and_kicad/ ):
somewhen around July 2014..
It might not be a problem much longer! We're currently putting in a fix to automatically combine the drill files, so if that works out well then it won't matter if you have two drill files. For the immediate future, you'd need to merge the files into a single drill file with both plated and non-plated holes. We use GerbV for this, which is pretty quick and easy. If you'd like, you can send the files over and I can help out as well.
Also keep an eye on the Drill File support pages, since I'll be updating those to show the proper state of the server as soon as our fix goes live. Could be as soon as tomorrow!
Might be time to check up on that with OSH park and not demand work-around-the-spec features from KiCAD?
Don't see any updates on that page though..