This comes up pretty frequently here, especially when new builders have their first experiences with nutplates, and statements like this Need to be made very carefully. Building an airplane is not like working on your house, or car, or boat, or bicycle - fasteners have locking features in aviation because it is very critical to not have fasteners come loose!
Yes, there absolutely are places in your RV build where running a tap through a nutplate to remove the locking feature is fine - interior trim and floor panels, for example. But when a ?newbie? reads someone?s statement to ?just run a. Tap through it?, they might do so on a critical part - like an elevator hinge retainer - and that would not be a good idea. It?s also not a great idea to have fairings come loose, so blanket statements can be dangerous.
Waxing and oiling screws, using good screwdrivers, and taking your time to do it right are the real answers to this problem.
Paul