I can see myself buying a bunch of these things to equip all my mods and all my toppers, and be done with stupid e-cigarette screw-on connectors of all kinds. I can't stand them, they're nothing but trouble.
But mostly, I'd like one for my E-LVTs: if I could quickly and easily remove the dripper, I could use a smaller case to transport it. As it is now, I can't very well unscrew the dripper several times a day: the threading wouldn't survive that sort of treatment for very long. So I leave it on permanently, which makes the whole mod unecessarily long and bulky in my backpack.