Honestly, poor/stilted writing. This accounts for typos, basic grammatical mistakes, bad punctuation, but also just... bland prose. It can really kill a game's vibe.
Gotta agree on this. Radiant devs have been milking this game for ages now. But I mean, if people keep giving them money for absolutely no content, then can you really blame them? At this point they're just being enabled.
For context: I'm a translator JP > EN.
There are none for proper translations. If you're fine with a general, often inaccurate gist, then pretty much any LLM/machine translator software would work.
However, if you can't read Japanese, you shouldn't be machine translating. It'd be impossible...