Many of the same folks who use this "overkill method" are soon to be out of the hobby. It is simply somebody who does not understand the hobby buying up all they can in the beginning, then burning out just as quickly.
When they get into a new hobby they buy all the toys, and in this case post them on the board to show off their new toys. Then they tire, sell their stuff and move on to their next cool hobby.
The only good thing about this is that some smart hobbiest can usually buy this practically new, now unwanted gear for cheap, as well as whatever "fad fish" was hot at the time they entered the hobby.