The tabs you're talking about on the dropouts of the fork are meant to decrease the likelihood of the front wheel coming out if the axle nuts or quick release lever are loose. They do not, in any way, prevent the axle nuts or quick release lever from loosening. It is the operator's responsibility to make sure the axle nuts or quick release lever are as tight as they should be before every ride.
It is my belief that every person in this world has something to teach, and everything to learn.
In memory of Jim Price (aka. sydney) ...