Originally Posted by
prj71
From the vibrations on the road the lever will loosen up releasing the tension, then it slowly starts turning and then the front wheel becomes loose in the fork or rear wheel in frame.
This is incorrect.

If your wheel has become loose it's because you did something wrong or your equipment was faulty. FWIW, I'm no fan of QR and discs and wouldn't buy a
new disc brake bike w/o thru axles. Nothing to do with fear of the wheel coming loose, however.