Japanese side I’m not sure, but English, yes, but it’s nowhere near as bad as the Spanish/Korean side of things. I wasn’t going to mention any of them because it’ll cause flame wars, but let’s just say one guy wanted to make a set of Spanish voice libraries but his compatriots have been criticising his libraries for sounding too similar to some of the existing libraries, which is kind of inevitable with how much development the engines have yet to undergo (you can technically make any two libraries sound like each other if you put in the right amount of work and research). And then the guy (understandably) lashed out at the rest of the community and announced his resignation. As for the Korean side, way worse. There’s been a voice provider that’s been known for some… yea, I can’t say what she did without risking getting banned from all of the internet, we all know there’s a good reason why all platforms have strict policies against NSFW content.
English side of things on the other hand, the worst it’s ever gotten was like, what, voice providers of a couple Vocaloids treating their characters like darlings and kinda being aloof from the rest of the fanbase (to be personally fair I’m on the middle of the fence about it)? Or do you want to talk about how I wound up banned from several platforms over defending several libraries’ viability in rock and metal, because that’s the biggest controversy I can think of other than the aforementioned darlings controversy… (because surprise, I’m a Voca-P that’s been around for at least six years in the scene!)
Also, toxicity is exactly why more and more people have been leaving forums and servers, not even counting the number of people that wound up wrongful-banned from several platforms, myself included.
Not trying to say Spanish and Korean should be avoided, but there’s been some massive scandals that took place in those communities and that’s why the fandom there are going to be really sceptical. That said, we may never know, because there have been some massive controversies in EN too and half of them happened only because I was there.
Again, like I said earlier, French is one of the languages I really do want to push for. I’m also thinking Estonian.
Another thing, like, if anything, I for one, like, would still vouch for Korean despite the R-rated scandal that happened not long ago, because I would definitely love to try and be that bilingual connector between EN and KR (Yes, I’m bilingual), and I’ve seen what the people have been doing in that scene and I would definitely love to try and get to know more of the scene.