This just hit my head, so I'll put here for some brainstorming.
After @mauritsvanrees did an amazing job in https://github.com/plone/Products.CMFPlone/issues/1070 (removing the txt in profiles folders and creating pre_handler and post_handler in genericsetup profiles, a dream becoming reality ), we just created a new addon for internal projects using bobtemplates.plone, and as you see, we now have this snippet of code as a good practice:
<utility factory=".setuphandlers.HiddenProfiles" name="my.package-hiddenprofiles" />
Do you think it's feasible, or if it makes sense (don't even know if it's possible) to have a new attribute, for example "hidden", in genericsetup profiles, that would hide the profile instead of adding this snippet of code we now add to all packages?
<genericsetup:registerProfile name="uninstall" hidden="true" title="my.package (uninstall)" directory="profiles/uninstall" description="Uninstalls the my.package add-on." provides="Products.GenericSetup.interfaces.EXTENSION" post_handler=".setuphandlers.uninstall" />