If there was one term I could actually effect a moratorium on I think it would have to be the phrase “post-”. But, since I can’t effect a moratorium, allow me to propose an axiom instead:
Any conceptual position (theological, philosophical, etc.) that describes itself using the modifier “post-” is never actually “post-” anything in anything other than a temporal sense (and usually that’s not the case either).
Postmetaphysical? No. Postfoundationalist? No, you were never foundationalist to start with. Postliberal? No, you’re still liberal. Postmodern? Shut the fuck up, that’s just stupid. Post-postmodern? Kneecaps, meet baseball bat.
The only possible places where I can think of the term “post-” having any real usefulness are in the realms of architecture and art history. Insofar as it gets used by philosophers and theologians its just an attempt to short circuit an argument by pretending that the views you are attacking were a developmental stage you went through when you were young and not quite as well read as you obviously are now. To call any view “post-” anything is just a masquerade alloying one to define your adversary as wrong, arcane, and naive from the outset.
In short, adopting the language of “post-” is unforgivably cheap and masks a lack of ability to actually make good arguments against things you want to criticize.