Japan flag with some anime ahh name.
I mean, did one of these guys really had a interaction online with a Japanese once? They use the most random ahh names ever, like my DayZ friend, which was called "Dog slime".
depends on the motive. there was a baiter named issax that would constantly change flags when baiting to get people to roast that specific country, which was probably to deflect hate against his home country (singapore).
just put wtv flag you want it ain't a bad thing. It is bad if you try to make a bad impression of a country by fake flagging as someone from the selected country