Nonsense. Lets not co-opt "gatekeeping" to cover any sort of attitude we find distasteful, shall we?

Looking at a bunch of definitions of gatekeeping the closest I can find is this:

gatekeeping refers to the actions of individuals or groups who try to define what is and isn't acceptable within a particular community and determine who is and isn't allowed to participate.

My assertion:

I kinda wonder how much time other commenter here have spent at their libraries.

You really can't co-opt that into the definition of gatekeeping.