Well I've started posting on the subreddit the past few days and nobody understands sarcasm over there, so it'll be real easy to go undercover as a mindless detractor, since they all believed me when I told them I thought Wario was cut, lol. (on the topic of wario being leaked through the eshop, I sarcastically called it a fake because there was no way Wario was returning... seemed obvious /s to me but I guess not)
As for Japanese, I've actually taken a course for it at my university, but we only got through 2 of the 3 written languages. Kanji is the one not covered until JAPN102, but it's also the most common, and arguably hardest to learn since it's a symbol based language instead of phonetic, like hiragana and katakana. Plus I probably don't actually know the meanings of enough hiragana words for reading it to be helpful, but I can probably look those up without spoiling myself. The menus shouldn't be too big a deal, because I can just memorize where they all lead. The hard parts will be when notification menus come up for side things I unlock and I accidentally speed through them, and then have no idea what I just got @.@