The permanent form of the Guardian Wall can only be switched on, or switched off : - Switched off makes you worry too much about hitting your furniture, and so limits the amount and speed of movements you dare to make in VR (or you don't worry enough about hitting your invisible limits and you do move fast enough to manage to crash your hand into something). - Switched on it is highly intrusive and immersion breaking, which is why I'm guessing ~100% users leave it switched off.
My Feature Request : Add a "dot mode" to the Guardian wall, that transforms the permanent highly intrusive full laser cage into a significantly less intrusive permanent bunch of dots, which can be left switched on using during gameplay without getting in your way. This would be a specially useful feature for intense action room scale applications like "Echo Arena", so you can tell at all times how far you are from your closest wall, without ruining the immersion.
This small change would radically change the way I dare move in VR : I find the ground floor Guardian marking to be too low to be useful, so I always play in slow motion instead, and find fast action (throwing and thrusting) games like Echo Arena too dangerous to be played at all (specially for my friends, and my monitor in front of them...).
Of course, when the user does get close to the Guardian Wall limits, it then lightens up under it's current highly intrusive full laser cage form as usual.