Just a reminder, the only maintainers are (as listed in MAINTAINER) the maintainer of individual plugins, so its only of interest if menu bar is something they might add to their plugin.
It seems to be that there is a misunderstanding. My idea is that the plugin `Toggle menu bar` does only one single thing: to toggle the menu bar with a shortcut. It should not be part of an other plugin.
Do you think that if the plugin `Toggle menu bar` is programed that there is big chance that the plugin `Toggle menu bar` will be implemented in the official plugins like the plugin `Save Actions` or `Spell Check`? I ask this because if you say that there is less chance that this kind of plugin will be implemented in the official plugins, then there is no need to program the plugin.