Idols whose vocals have regressed since debut?

Quote from Marinated Egg & Beans Boar (674)

With V it's really hard to tell because he's mostly just breathing into the microphone at this point.

It suits his own songs though.

when I saw BTS live, he sounded really hoarse (?) so did Jimin tbh. granted this was years ago at this point.

Quote from Broasted Confit of Mammoth (300)

when I saw BTS live, he sounded really hoarse (?) so did Jimin tbh. granted this was years ago at this point.

Jimin used to be really good but now a days he just can't sing live. And V sings exceptionally good in his own songs but bts songs don't suit him, they're too high for him and jin too.