Oh look. Something happened to make him hide, yet accidentally leave a possible dox. I'm keeping it like this due to the new rules, but as it is, it seems like he's gone into hiding... and the same has happened to his Japanese account.
He has not, however, stopped replying in the account; it's just that all tweets are protected. Meanwhile, he started over on a second Japanese account,
@VioletFerretJP.
Now, the big thing is that, out of curiosity, I decided to look up the name "Richter Taylor" online. Just out of curiosity, to see if he was one of those guys among a crowd or a rare case. The real finding is that I can't actually find the name Richter Taylor anywhere, normally - but I CAN find the name "Taylor Richter" online aplenty. Considering his normal treatment of Japanese people, it kind of amuses me if he is actually writing his name backwards, or if this is actually just a reference to Richter Belmont instead.