I have a feeling the use of the term Culture here came from Genshiken (or indirectly did, from the venerable "Society for the Study of Modern Image Board Culture" textboard that existed on https://wakaba.c3.cx/ until it got spammed into oblivion.)

In Genshiken, this is needless to say a joke, because all the "Society for the Study of Modern Visual Culture" does is consume weebshit.