>>9593870the poster in the pic is on the right track in that "casual fan" literally just means a paying adult (white) American male in the market for US TV wrestling by way of association with mainstream sports fandom. This is the demographic that matters, and we do no favors by ignoring the elements that make it important by couching it in vague "casual fan" terms.
If you're a weeb nigga who pirates NJPW a few times a year, you're technically a "casual fan" but not the kind that matters by any economically important metric.