When did you start noticing this enter the mainstream? For me it was ~2015. I remember when anime avatars were mocked and ridiculed, and "weeb" was used an an insult. (admittedly both by poeple who did and did not watch anime, but that itself is a point I won't touch on here.)
Yet I find "thing, Japan" to be 10x worse than that. So much so that I stopped watching anime completely. I see the most boring, time wasting and irrelevant videos on youtube in the default youtube homepage (no cookies) that simply have "Japan" in the tittle with millions of views and thousands of comments half about anime and half about how Japan does the thing in the video 10x better than everyone else. And 90% with anime avatars. So much for escapism... Japan is now everywhere.
>take a shot for every random article about Japan that gets to the front page
Just this or last week there was a Japanese university compsci cirlce-jerk here on HN. Apearantly, Japan is known for it's unbeatable hardware design programs, unrivled by any gaijin education. And yes, Japan is of course a top country in tech. But these claims are ridiculus and unfounded, especialy as Japan's hardware industry has been on the delcine. For example, Samsung is rapidly removing them from their supply chain (even the chemicals that ONLY Japan can produce, or something) and Chinese cameras have made it into the S23 Ultra. Of course little to no mention of Korea in the replies to that post desipte being a leader in almost all hardware tech: DRAM (1); Fabs (2); display (1); smartphones (2); SSDs (1 or 2) and recently some "heavy industry and chemicals" that Japan is still known for.
I don't hate Japan, far from it, but this needs to stop.