I don't have any personal experiences in Japan so I'm not going to credit or discredit the claims. In that same spirit I wouldn't default to assuming this individual is lying or exaggerating, and I'm highly suspicious of anyone that would. All I know is that the Japanese have historically been a xenophobic and isolated nation, and most of the contemporary accounts I've seen seem to suggest that that history carries strongly through to today. So if foreigners in Japan are saying they deal with a lot of discrimination, I'm inclined to believe them. I'm like "Yeah that makes sense. Yeah that's consistent with everything I've heard about Japan." If any one individual is lying about any racism/discrimination that they've experienced, okay yeah fuck that person. Lying isn't cool. But I don't have any evidence for this specific case one way or the other. What I do have is the "common knowledge" that everyone knows Japan is not friendly to foreigners, and is pretty racist. And it's not even specifically racism towards black people. Its just general racism. I watch a lot of YouTube channels of Americans and Europeans that live in Japan, and they've ALL been pretty consistent in reporting that casual racism in Japan is a totally normal and common thing. And none of that means I hate Japan - quite the opposite. I really, really wanted to immigrate there.
The same people ITT screaming "DEPORT HIM!!!" and referring to all black people as a monolith (they) that plays the "race/victim card", are the same people that think there's no racism in America. That slavery was basically justified and ok. The same people that think black people are genetically inferior and genetically commit more crime (but I'm not racist btw!!!!!! stop overusing that word!!!! I just believe in the skull science proving blacks are inferior ok?! that doesn't make me racist!!!). They don't care about a discussion of racism in Japan. They don't care about the merits of this particular case. They're in here to hoot and holler and wish ill upon a random dude because he's a member of a racial group that they've deemed inferior to themselves. That's why every reply to this thread so far has been one to two sentences adding nothing to the conversation and just basically hoping that harm is done to this person. Their underlying motivations are pretty obvious. This board is just one of multiple tabs that they have open, and the other tabs are 4chan, stormfront, the bb misc, kiwi farms, and whatever other shithole corner of the internet that provides safe-haven to open Nazis and racists.