^^You should be asking yourself how well it would handle dirt and grime buildup being under a daily/regularly driven vehicle....and whether that valve needs to be cleaned periodically.
If it's mounted on a garage queen...sure why not.
I think wagonrunner hit the nail on the head with this one.
Or if you fall out with someone he can easily turn the valve and let out your oil or some vagrant or piper can do this ...
I think this should be the least of the OP's concerns, unless of course he puts a gi-normous sticker on his car "I HAVE A FUMOTO VALVE" on his windscreen....or goes on bragging about his mad-jdmtyte-mod to his peeps who toting feelings.
People won't even know he has one, such that it can be targeted.