Blade Fuse Block Box Holder 12 Way With LED Indicator for Blown Fuse Suitable For Automotive Marine Boats Weiruixin (12way)

The negative reviews say that it leaks voltage even when fuse is blown and even when no fuse is inserted at all. Can this issue be fixed?

would this work for a Motorcycle?

Are there stickers available that relate to automotive applications?

WHY do I have 12 v on the screw terminals with no fuse in place???