I'm not a site admin, sorry.
You might be able to convince volt to do it, though. I'm fairly sure he's either an admin or the site owner.
Or maybe you could post this as a suggestion in the "Feedback" forum. I'm sure the admin(s) read that one. Considering there are two entire Linux forums here, you'd think it would be set that way already, but hey, whatever.
You could also use InfoZip's zip
program (should be installed; if not, install the zip and unzip packages) in Linux to create real zip files. For future reference, anyway.