This is such a weird angle to approach "GAZ10 The Orcs of Thar" from.
The purpose of a gate is to allow access to both sides of a barrier, such as a wall or fence.  And a gatekeeper is someone who guards the gate and decides who gets to use it. 
In this thread, the wall is a metaphor for the boundaries that consumers have, to separate and contain harmful/offensive content.  I get that.  And I understand that there are going to be gates in those boundaries...our metaphor for a means of access that allow mature, like-minded consumers to use harmful/offensive content (I'm sure they have their reasons).  But gatekeepers?  People deciding who is allowed to access harmful/offensive content and who isn't?  I don't think so.
We've seen arguments about whether or not the barrier should be there, and arguments ovwr whether or not there should be gates.  But I don't understand the accusations of gateKEEPING... that's not what's happening here.