lol the funniest thing is they'll change it up whenever they please 😂 like i scrolled through one maettael account to refresh my memory and just that one person used pretty much all of them in their most recent tweets. it makes sense though bc there's a lot of similar sounds in hangul you can switch out in his name! compared to taerae who just has the vowels. sometimes you see 톄례/턔럐 (using the ye/yae vowel) but e/ae is essentially the same sound in Korean so 테레 is easiest.

Also just to expand on the topic, it doesn't apply to Matthew and Taerae because their names have no ending consonants but another interesting way to misspell korean names on purpose is to use a second ending consonant! in most cases the second one isn't pronounced anyways so it works well to censor!! you might see 핝빈 for Hanbin, for example